Holly Madison has discussed ex-boyfriend Hugh Hefner in an interview with "Oprah: Where Are They Now." The 35-year-old former "The Girls Next Door" star opened up about her split from the 89-year-old Playboy founder amid continued bad feeling with Hefner and fellow former girlfriend Kendra Wilkinson. Madison painted an unflattering portrait of the pair in her memoir "Down the Rabbit Hole," which caused a stir upon its release in June. Madison and Wilkinson dated Hefner simultaneously from 2004 to 2008. The TV personality alleged Hefner offered her drugs and pitted the girlfriends against each other in her book, and told Oprah Winfrey he tried to bribe her by leaving her $3 million in his will. "It was very clear to me that he'd left [the will] out for me to see, because he was hoping it would change my mind and get me to stay," she recalled of the day she left. "But it just kinda disgusted me more than anything because all he can do is say, 'Oh, here, I'm gonna throw you some money to get you to stay.' It just grossed me out." Wilkinson defended Hefner after Madison's memoir debuted, as seen on Friday's episode of WE TV series "Kendra on Top." Bridget Marquardt, who also dated Hefner at the same time, showed her support for Madison following the book's release, and congratulated her on the Oprah special Friday.