Lauren and Heidi’s friendship is definitely over because of some rumors that Lauren believes that Heidi and Spencer started about her regarding a sex tape with her ex-boyfriend. Heidi meanwhile can’t understand why Lauren is mad at her. Spencer proposes to Heidi and they plan a wedding, although their relationship is rocky at times. Spencer gets jealous over the time Heidi spends at work which causes friction between them.

Whitney settles into her new position at Teen Vogue, only to discover a few episodes later that she doesn’t want to stay there after all. She gets a new job at a fashion PR firm, People’s Revolution. Lauren joins her there.

Lo Bosworth, a childhood friend of Lauren’s, starts hanging out with Lauren a lot more often. They decide to buy a house in Hollywood together an invite Audrina to move in. But there is growing tension between the three of them as the season comes to an end… Audrina seems to feel weird around Lo.

The season finale has Heidi losing the Vegas account at her job when Spencer goes there (with Stephanie) to get her back. Lauren tearfully confronts Audrina about the fact that they haven’t been hanging out much lately although they live together.