Kristin, 20, and Nick, 29, moved in together this past summer - so what went wrong? "It wasn't working out," reveals the friend. "She was bored, and I think she realised she was better off keeping her options open."
So basically, Kristin missed the single life. "She used to be the It girl, and now she sees all of these other girls who would normally be in her shadow stealing the spotlight...I think she wants back in on the scene...living together put a real damper on things."