Jenna returned home, but everyone forgot she was returning and she realizes that everyone has changed a lot in her absence. 

She returns without Matty, who hates her, but we were never told of what exactly Jenna did to him. 

When she gets to her house, Lissa is there and it turns out that she's the new nanny and she does not like to cook. Jenna has to share a room with her new sister who keeps her up all night. 

Jenna starts working at Idea Bin were she bumps into her ex-boyfriend, Luke, but things aren't all that awkward between them and by the end of the episode, they are sleeping together. 

Tamara returns and has Sadie with her who makes some rash comments about Jenna's car. 

Tamara and Sadie are now BFF's and Jenna couldn't be more pissed off about it. 

At a party, Matty's girlfriend hits Jenna with a ball and it leads to an argument between Jenna and Matty. Jenna storms away from the party when no one goes on her side and rushes home. 

She goes to the office to work, but Luke shows up and informs her that he put her application to the top of the pile.