Kyle Richards, Sutton Stracke, Garcelle Beauvais, Erika Jayne, Dorit Kemsley and newcomer Boz Saint James make a splash in 'The Real Housewives of Beverly Hills' season 14 opening credits
"Once he made the decision to get sober and to take the journey, things became very clear, and he had a lot of work to do on himself," Dorit tells PEOPLE
"I realized that we were just taking bites out of each other the whole f---ing time," PK said of how his sobriety affected their split. "I had a lot of resentment"