While their "Gossip Girl" characters swung wildly from the ultimate BFF duo to toxic frenemies almost every other episode, off-screen, Lively and Meester were said to have had a frosty relationship.

The CW teen drama ran for six seasons between 2007 and 2012. Lively played the effortlessly cool, free-spirited Serena Van der Woodson, the foil to Meester's controlling queen bee Blair Waldorf.

New York Magazine reported in 2008 that the two stars were said to "avoid each other like the plague" while on set shooting the show's early seasons, with tensions running so high that their castmates were forced to "choose sides."

"Blake and Leighton have never been best friends, and never professed to be. Blake goes to work, does her job, and goes home," a publicist for Lively said at the time, per Harper's Bazaar.

However, speaking to Vanity Fair for a retrospective on the series published in 2017, showrunner Joshua Safran said the pair got on fine on set.

"Blake and Leighton were not friends. They were friendly, but they were not friends like Serena and Blair," he said. "Yet the second they'd be on set together, it's as if they were."

In the same article, recurring cast member Michelle Trachtenberg denied rumors of a full-blown feud between the two.

"It's funny," she said. "Because when we were filming, there was, 'Leighton hates Blake, Blake hates Leighton, everyone hates Blake, everyone hates Leighton, everyone hates Chace,' and blah, blah, blah. It really wasn't. We were all chill. It was cool."

Incidentally, as of 2024, Lively and Meester do not follow each other on Instagram. Meester does, however, follow two of her other costars, Chace Crawford and Penn Badgley.

Appearing on "Watch What Happens Live With Andy Cohen," Armie Hammer was asked by an audience member to name the "biggest diva" on the set of "Gossip Girl."

Hammer had a four-episode arc on the series during its second season. He played Gabriel Edwards, a conman who briefly dated Lively's character.

In response to the question, Hammer diplomatically said: "Let me just say that was a tough show to film, and I didn't end up actually filming all of the episodes I was supposed to because it was such a tough film."

"Really? Literally, you said, 'Get me out of this'?" Cohen asked.

"It was also like, 'Get him out of here,'" the actor said.

Cohen followed that up by asking whose love interest he played in the series, prompting Hammer to drop Lively's name.

Chelsea Handler, who also appeared on the talk show, joked, "Sounds like she was the problem."

Cohen added: "It sure does, Chelsea. That's exactly what I was thinking."

"No, no, that's not what I'm saying," Hammer replied, laughing awkwardly.

In 2012, Lively and her husband, Ryan Reynolds, tied the knot at Boone Hall plantation in South Carolina. The plantation features nine slave cabins built between 1790 and 1810, which are referred to as "Slave Street."

Reynolds apologized for the decision in a 2020 interview with Fast Company after the couple was called out for the hypocrisy of a joint statement — accompanied by a $200,000 donation to the NAACP Legal Defense — they shared on Lively's Instagram following the murder of George Floyd by police.

Reynolds said they chose Boone Hall based on Pinterest photos and only realized it was a "place built upon devastating tragedy" after the event.

Reynolds added that after learning of Boone Hall's history, the actors had another wedding at home years later.

Lively has not addressed the backlash over her wedding venue.

Two years after her wedding at Boone Hall, Lively launched a lifestyle website called Preserve.

In just a matter of months, it attracted controversy when its fall issue featured a photo shoot and article that appeared to romanticize the monied world of the Confederate South.

Titled "Allure of Antebellum," the photo shoot featured a white, blonde-haired model in a floppy hat, high-heeled pumps, and a leopard-print mini-skirt.

In the accompanying article, the unnamed author wrote about the "innate sense of social poise" and "unparalleled warmth and authenticity" of the pre-Civil War era women.

"The term Southern Belle came to fruition during the Antebellum period (before the Civil War), acknowledging women with an inherent social distinction who set the standards for style and appearance," the Preserve article read.

"These women epitomized Southern hospitality with a cultivation of beauty and grace, but even more with a captivating and magnetic sensibility."

The publication of the editorial immediately attracted criticism, with Refinery29 arguing: "The authors use the word antebellum in a misty-eyed, nostalgia-tinged way that completely ignores the brutality endured by Southern women not lucky enough to be born into privilege."

A year later, in October 2015, Lively shuttered the site, explaining to Vogue in an interview that it was because she and her team had "launched the site before it was ready."

Lively and Anna Kendrick starred alongside each other in the 2018 movie "A Simple Favor."

According to reports, the two had a falling out on the set of the film.

Claire Parker, cohost of the popular podcast Celebrity Memoir Book Club, previously said in a TikTok video that by the end of the movie, Lively and Kendrick "were not speaking," citing an unnamed studio source.

While neither Lively nor Kendrick has addressed the rumors, their costar Henry Golding has denied the claims of a feud, saying he thought the two stars got on "reasonably well."

"Definitely no friction that I noticed," he said when asked about the rumors on "Watch What Happens Live with Andy Cohen."

Despite this, fans have continued to speculate about sensing tension between the two stars — who are set to reunite for a sequel next year— in joint interviews.

Reporter Kjersti Flaa interviewed Lively and her costar, Parker Posey, about the film "Café Society" in 2016.

Flaa reshared the interview eight years later — at the height of Lively's "It Ends With Us" backlash — when she uploaded it to YouTube with the title "The Blake Lively interview that made me want to quit my job."

In the video, Lively offered a snarky response to Flaa after she congratulated the actor on her pregnancy.

"First of all, congrats on your little bump," Flaa said, kicking off the interview.

"Congrats on your little bump," Lively responded, although Flaa was not pregnant.

Later in the interview, Lively challenged Flaa for asking a question about clothes. The actor also seemed to ignore Flaa in parts of the interview and angled her body toward Posey.

"It actually took me a while to get over the experience," Flaa previously told Business Insider, adding, "I have met moody celebrities, but nothing like this interview."

Flaa told MailOnline that Lively's comment was particularly hurtful because she wasn't able to conceive.

"It's true that the comment hurt me because I was never able to have kids myself, but of course Blake did not know that so I can't blame her for the pain that I felt," she later told BI.

Lively's 2016 film "Café Society" was directed by Woody Allen.

Two years before "Café Society" premiered, The New York Times published an open letter by Dylan Farrow, Allen's adopted daughter, reiterating the accusation that he groomed and sexually assaulted her as a child.

Farrow originally accused her famous father when she was 7 years old. At the time, a state's attorney in Connecticut said he had "probable cause" to prosecute but declined to file charges.

In the 2014 essay, Farrow called out Hollywood stars like Cate Blanchett, Emma Stone, and Scarlett Johansson for working with Allen in recent years and ignoring the allegation against him.

"Woody Allen is a living testament to the way our society fails the survivors of sexual assault and abuse," she wrote.

During the press tour for "Café Society," French comedian Laurent Lafitte cracked a joke about Allen dodging accountability during the opening ceremony for the 2016 Cannes Film Festival.

Later at the festival, Lively made it clear she disapproved of Lafitte's material.

"I think any jokes about rape, homophobia, or Hitler is not a joke," Lively told Variety. "It was more disappointing for the artists in the room that someone was going up there making jokes about something that wasn't funny."

At the same event, Lively also said she hadn't read Ronan Farrow's new op-ed in the Hollywood Reporter, in which the investigative reporter defended his sister and criticized powerful people for "sweeping aside her allegations."

"I don't want to speak on something I haven't read," Lively told Vulture. "I think that's dangerous. It's definitely something that being at the festival, the media these days, you come to a film festival about film and people talk about all different types of things. You know? That can be definitely tricky to navigate."

Lively continued to praise Allen throughout the press tour, describing his director style as "very empowering."

"It's amazing what Woody has written for women," she told the Los Angeles Times, adding that she did not consider Allen's personal life while shooting the film.

"It's very dangerous to factor in things you don't know anything about," Lively said. "I could [only] know my experience. And my experience with Woody is he's empowering to women."

In 2017, Farrow published another op-ed in the Los Angeles Times that questioned Allen's role in the #MeToo movement, casting Lively as a hypocrite for condemning Harvey Weinstein but continuing to support Allen.

In 2018, Lively posted in support of Hollywood's anti-sexual harassment initiative Time's Up, writing, "I'm honored to be a part of this movement. The time is NOW!"

Farrow replied, "You worked with my abuser, @blakelively. Am I a woman who matters too?"

Farrow's account of her assault has remained consistent over the years, most recently in the 2021 HBO docuseries "Allen v. Farrow," while Allen has repeatedly denied the allegation.

Amid the social media storm that erupted after the release of a digitally manipulated portrait of the princess and her children following Middleton's mysterious retreat from the public eye, Lively jumped on the trend of mocking her "photoshop fails."

She shared an edited photo on Instagram to promote her beverage line. The photo showed Lively sitting in a chair by a warped pool with a comically enlarged thumb and a lemon floating above her head.

According to People, she captioned the photo: "I'm so excited to share this new photo I just took today to announce our 4 new @bettybuzz & @bettybooze products! Now you know why I've been MIA."

Middleton later announced that she had been diagnosed with cancer and was undergoing chemotherapy.

Lively later deleted her post and shared a note on her Instagram Story apologizing to the British royal and her own followers.

"I'm sure no one cares today, but I feel like I have to acknowledge this. I made a silly post around the 'photoshop fails' frenzy, and oh man, that post has me mortified today. I'm sorry. Sending love and well wishes to all, always," she wrote.

"It Ends With Us," a film in which Lively plays Lily Bloom, a woman experiencing domestic abuse, opened in theaters on August 9, 2024.

It's based on a book of the same name by BookTok favorite Colleen Hoover; fans who already knew the story immediately began to question Lively's promotional approach.

In a promo video shared on the film's official Instagram account, Lively encouraged people to watch the film by saying: "Grab your girls, wear your florals!"

Lively also leaned into method dressing, opting for florals in almost every outfit she wore during the press tour, which some fans criticized as tone-deaf.

In a TikTok video that's been viewed more than 4 million times, a woman who identified herself as a domestic violence survivor accused Lively of promoting the movie like it's "the sequel to Barbie."

Elsewhere, the actor could be seen using interviews and events for the film to cross-promote her brands, including her hair care line, Blake Brown.

A promotional email for Lively's beverage line, Betty Buzz, also shared a recipe for making a cocktail using her husband's gin brand, The New York Times reported.

As fans noted, Lively's approach contrasted starkly with that of her costar and director, Justin Baldoni, who was praised for highlighting the movie's weighty themes during his interviews.

It didn't help that the two were also pitted against each other following rumors of a feud between them.

The charity Women's Aid also criticized the marketing around the movie, sharing a statement with the BBC that read: "Despite domestic abuse being a key theme of the film, much of the marketing has ignored this and viewers have not been warned about the potentially distressing content."

On December 21, Lively filed a legal complaint against Baldoni, accusing her director and costar of sexual harassment, retaliation, and coordinating attempts to damage her reputation.

According to the filing, obtained by Business Insider, Lively's strategy for promoting "It Ends With Us" — which drew backlash for making light of the film's themes — was "in accordance with the marketing plan created and delivered by the film's distributor Sony."

The marketing plan directed the cast to avoid discussing sad or heavy themes, in order to frame the film as "a story of hope."

At the same time, Lively alleged that Baldoni "abruptly pivoted" his talking points in an attempt to explain why he'd been unfollowed by much of the film's cast and crew on social media — apparently prompted by Baldoni's inappropriate behavior on set.

"To that end, he and his team used domestic violence 'survivor content' to protect his public image," the legal filing reads.

As Business Insider previously reported, Baldoni hired a public-relations crisis team, including veteran PR manager Melissa Nathan, as rumors swirled that he was on the outs with Lively and other castmates. According to Lively's lawsuit, Nathan's team helped Baldoni orchestrate an online smear campaign against Lively, partially to distract fans from speculating about his conduct on set.

"He wants to feel like she can be buried," a publicist working with Mr. Baldoni wrote in a message to Nathan, per the legal complaint.

"You know we can bury anyone," Nathan replied.

A rep for Baldoni called the allegations "shameful" and "categorically false" in a statement to Business Insider.

A rep for Lively told The New York Times, "I hope that my legal action helps pull back the curtain on these sinister retaliatory tactics to harm people who speak up about misconduct and helps protect others who may be targeted."

Since starring in the 2005 movie "The Sisterhood of the Traveling Pants" and its 2008 sequel, Lively, Ferrera, Tamblyn, and Bledel have remained close friends.

In a joint statement released on Instagram, Ferrera, Tamblyn, and Bledel showed support for Lively.

"As Blake's friends and sisters for over 20 years, we stand with her in solidarity as she fights back against the reported campaign waged to destroy her reputation," the statement reads. "Throughout the filming of 'It Ends with Us,' we saw her summon the courage to ask for a safe workplace for herself and colleagues on set, and we are appalled to read the evidence of a premeditated and vindictive effort that ensued to discredit her voice. Most upsetting is the unabashed exploitation of domestic violence survivors' stories to silence a woman who asked for safety. The hypocrisy is astounding."

"We are struck by the reality that even if a woman is as strong, celebrated, and resourced as our friend Blake, she can face forceful retaliation for daring to ask for a safe working environment," the statement continued. "We are inspired by our sister's courage to stand up for herself and others. For anyone seeking more information or engaging in this important conversation online, please read the full legal complaint in the investigative reporting by Megan Twohey, Mike McIntire, and Julie Tate for the New York Times."

In an Instagram Stories post, the author wrote:

"@blakelively, you have been nothing but honest, kind, supportive and patient since the day we met."

"Thank you for being exactly the human that you are. Never change. Never wilt."

The "Bridesmaids" filmmaker directed Lively in the 2018 whodunit "A Simple Favor," and the two recently wrapped on a sequel.

"I've now made two movies with Blake and all I can say is she's one of the most professional, creative, collaborative, talented and kind people I've ever worked with," Feig wrote on X. "She truly did not deserve any of this smear campaign against her. I think it's awful she was put through this."

Robyn Lively, Blake's half-sister who also starred in "It Ends with Us," posted on Instagram to show her support.

"She is one of the kindest, most honest and loving humans I know. Blake isn't a villain. She's a mama bear to her core, a loving and supportive wife, a sister, a friend, and someone who worked her ass off on a film in abominable working conditions," she wrote.