Jimmy challenges Gretchen to tackle some of the responsibilities that come with being an adult.

Jimmy attempts to prove that, despite being on the verge of becoming a married man, he has not lost his edge. Edgar and Lindsay attempt to go on a real date.

Gretchen and Jimmy make “couple friends.”

Paul, Vernon, and Becca air their dirty laundry on a weekend getaway.

The day before the wedding, Gretchen’s mom comes to town and Edgar takes Jimmy on an epic best-man date.

On the day of their wedding, Jimmy and Gretchen grapple with the meaning of marriage.

Jimmy and Gretchen go for a long drive to force a conclusion on the confusing state of their relationship. Edgar finds closure with Max while Lindsay figures out a way to solve Becca, Vernon, and Paul’s problems all at once.

Edgar spends the day trying to find some relief for his PTSD.

Gretchen’s depression comes to a head, forcing Jimmy to make a tough choice. Lindsay finally lets Paul go. Edgar has his improv graduation show.

Edgar takes Jimmy on a “man date” in an effort to emotionally bond with him while Gretchen discovers some startling news about the new guy she’s seeing. Lindsay attempts to make friends at work.

Jimmy and Gretchen tell the story of their love to a prospective wedding planner.

Jimmy and Gretchen reveal that they're forgoing a traditional wedding, opting instead for a Courthouse elopement.

Jimmy attends Becca and Vernon’s baby gender reveal party. Gretchen takes care of some unfinished business. Edgar and Dorothy’s relationship reaches a turning point. Lindsay confronts Paul.

Jimmy and Gretchen take their relationship to the next level.

The group tries to get rid of a mouse in Jimmy's house; Gretchen finally opens up to Jimmy.

The three couples engage in day-long fights.

Gretchen has moved back into the house and plays mind games with Jimmy, sabotaging his first interview for the new book. Seeing an opportunity in Gretchen’s return to the house, Edgar and Lindsay plot to get Jimmy and Gretchen back together.

Lindsay's mom comes to town, shedding light on the origin of Lindsay's issues, while Jimmy attempts to get over Gretchen by hooking up with someone from his past. Meanwhile, Edgar struggles to reconcile his new writer life with his old veteran life.

Gretchen spends the day with Boone and his daughter in an attempt to distract herself from having slept with Jimmy the previous night, while Jimmy tries to prove to himself he’s moved on. Lindsay attempts to save Olivia from getting too close to the unreliable Gretchen, and Edgar trails Max to figure out why they’re no longer writing partners.

Gretchen becomes fascinated by a slightly older, cool couple that appears to have it all. Jimmy employs a punishment-based system to ensure he meets his writing deadline.

At a wedding together for the first time since the day they met, Jimmy and Gretchen's tensions come to a head. Edgar's relationship is jeopardized by his newfound success. Lindsay is forced to come clean to Paul.

Jimmy and Gretchen investigate a murder site. Lindsay sees a new side of Paul. Edgar makes a sacrifice with unforeseen consequences.

Jimmy meets Gretchen's parents.

Jimmy tries to stealthily help Gretchen with her depression by planning a Halloween-themed Sunday Funday.

The gang embark on a very special Sunday Funday.