The series finale finds Kristin considering a major life change, while Audrina finally moves on from Justin, and Lo debates taking the next step with her boyfriend.

Audrina decides to end things with Ryan, and soon after, Justin surprises her on her birthday. Meanwhile, McKaela's friend Allie stirs up more trouble with K

Brody's new love interest gets on Kristin's bad side when she invites an old rival of Kristin's to a party. Also: Ryan returns from tour, and Audrina decides not to tell him about her run-ins with Jus

Kristin struggles to move on; Audrina doubts her relationship with Ryan after bumping into Justin; Lo befriends Brody's new girlfriend.

Brody puts his friendship with Kristin on the line when he starts seeing another girl. Lo sets Stephanie up on a double date.

Heidi and Spencer's behavior cause their friends & family to make a difficult choice. Plus, Kristin and Brody take flirting to another level.

Heidi throws a party for her neighbor; Spencer gets angry with Holly; Kristin urges Audrina to commit to Ryan.

Kristin stirs up trouble with the girls while she flirts with Justin Bobby. Spencer and Heidi go house hunting.

Kristin's flirting with Justin has Audrina angered as she tries to reconnect with her friends. Elsewhere, Heidi and Spencer are in search of a new home.