Some senior pranks manage to cause chaos. Jenna's vow to not think about Matty ends up being tested after she overhears a worrying secret.

Jenna causes an accident at school with surprising results; Matty deals with the fallout from his altercation with Jake.

Jenna gets a taste of popularity while Matty struggles with being shunned; Jake goes after a new student; Ally hosts a sex toy party.

The senior yearbooks are released; Jenna is depressed when she sees her superlative, but wonders what Matty will write in her yearbook.

Jenna is forced to throw Tamara a party for her fake engagement; Gabby reveals a secret about Matty, sending Jenna on a search for the truth.

Tamara accuses Jenna of sabotaging relationships, so Jenna confronts her ex-boyfriends to find answers.

Lacey asks Jenna to prepare a gender reveal party. Matty gets accepted to Berkeley and Jenna is ready to tell him that she loves him, but later bottles it as they prepare to go to separate colleges. Valerie returns to announce her engagement to Biggie, just as Lacey finds out she's having a girl.

Prom season arrives at Palos Hills High School; Jenna receives some surprising news.

Jenna refuses to let a series of obstacles ruin her chance at having a dream prom.

The prom takes unexpected turns.

Sadie is banned from attending graduation and giving her valid valedictorian speech after being busted for drinking at prom and causing a scene at the graduation day breakfast. Matty drops a bomb on Jenna and reveals he has to leave for Berkeley after graduation night for soccer practice over the summer, leaving the couple only one day left together. Before Jenna can respond, Valerie hijacks the graduation ceremony to announce it is now a "Weduation" - a surprise wedding for herself and her boyfriend Biggie. Lacey ordains the wedding and Jenna is called on stage to be the flower girl.

Tamara and Jake realize they are both holding on to how they have defined themselves in high school and confront their fears that they won't be able to achieve such high social status's in their post-graduate lives. Sergio and Sadie get back together. Jenna and Matty decide they love each other and want to continue the relationship over the summer.

Everyone arrives back from high school and Jenna feels weird that everyone is changing around her.

Jenna reveals what happened to her and the rest of the gang in the last year-what caused the freeze between Matty and Jenna, what sparked the friendship between Sadie and Tamara, and how Jake and Lissa rekindled their romance.

Jenna avoids a new relationship in order to connect with her co-workers. Meanwhile, Tamara throws a chic birthday party for Sadie that leaves more than one partier feeling less than celebratory.

In an effort to make Idea Bin a friendlier place for herself, Jenna hooks Tamara up with an internship but quickly discovers that working with friends can be a recipe for disaster.

Jake secures shifts for Jenna and Tamara at the country club; Sully's plans for an after-hours party on the golf course lead to fireworks.

Jenna and Matty continue to rekindle their friendship while they throw a party for Jake; Jenna's latest Idea Bin post threatens everything.

Jenna tries to decide between success at Idea Bin and her friendship with Matty. Jake has an unexpected hookup, and Sadie and Sergio find themselves closer than ever before.

When Jenna volunteers to baby-sit, Matty helps; Lissa learns the secret to being a Palos Hills mother; Tamara and Sadi are in over their heads.

Jenna takes things with Luke to the next level, and Tamara's debt comes back to bite her.

A fight with Luke pushes Jenna to sign up for her camp reunion - and towards reconnecting with Matty.

Help from Luke lands Jenna an important meeting at SCU and Tamara comes clean about her money woes.

Jenna has to choose between an important SCU event and her camp reunion, which leads to a much bigger decision: Luke or Matty.