Co-stars include Vincent Rodriguez III, Donna Lynne Champlin, Pete Gardner, Vella Lovell, Gabrielle Ruiz, Scott Michael Foster, and Skylar Astin.

Meanwhile, Heather and Hector try to convince Josh that he doesn't have a disorder and Nathaniel goes on a solo survivalist camping experience, only to be comforted by George.

Rebecca calls on Valencia to help her perform a séance, though Heather and Paula believe that there must be a logical explanation for the noises and electrical problems in the apartment.

Songs: "Time to Seize the Day"; "The Cringe" (sung by Castleman & the cast) Rebecca returns to work and, although Nathaniel is avoiding her, she aces a meeting with one of the firm's biggest clients.

Corporate shuts down the pretzel shop after finding several violations made by Rebecca, inspiring Jim to return to the firm.

Paula takes her sons, Tommy and Brendan, to do an escape room exercise and quickly realizes that she knows nothing about their lives.

Rebecca and Tucker take a trip into Los Angeles and stumble upon an open audition for a production of Peter Pan.

After he launches into a self-disparaging rant, Rebecca, recognizing how troubled he is, arranges with Tucker's mom for him to begin therapy and pays for him to go to theatre camp the next summer (instead of working at their father's construction site).

Distraught that her son is leaving after finally becoming close to him, Paula schemes to get him to stay by attempting to enlist his old school crush, but her plan backfires.

They drive to Irvine for a barbecue special, but clash when Darryl repeatedly defies Rebecca's request to keep things light.

To study for her finals, Paula buys a desk online and accidentally hires Josh to help her retrieve it from San Bernardino.

After her car breaks down due to its age and poor condition, Nathaniel and Heather get into a heated argument, and the package is revealed to contain the ashes of his childhood au pair Heidi, which he was planning to scatter in the ocean.

Heather tells him that he should show more people this side of him, and Nathaniel confesses that his cruel demeanor is a defense mechanism and expresses a desire to become a nicer person.

Rebecca opts to stay with Valencia and Beth, but plans to tell Naomi about her recent life struggles and changes after committing to being honest.

To get her mind off Josh, Greg, and Nathaniel, Rebecca doubles down on spin classes in preparation for a date with Jason, whom she was matched with on Tinder again.

While Rebecca is babysitting, Paula hosts a game night that's in celebration of her graduating law school, but she does not disclose this to anyone except for Scott because she doesn't want praise.

Nathaniel then enters a dream-like rom-com sequence where he and Maya are pretending to be in love as they are each trying to win back an ex (Rebecca and Joanne) by making them jealous.

Meanwhile, at the hospital Paula continues to practice for the bar exam despite still being in recovery and Darryl bonds with a woman named April over bean dip.

In the waiting room Josh, Nathaniel, and Greg get exposed to squirrel flu after being coughed on by a young boy and are taken to an isolated ward.

Darryl and April's daughters - Madison and Chloe, respectively - run into each other in the waiting room and it is revealed that they are classmates who have been holding a grudge against one another.

After sneaking Paula out and getting to watch her be truly happy taking her exam Rebecca realises she should pursue her dream of musical theatre.

Songs: "Anti-Depressants are So Not a Big Deal" (sung by Dr. Akopian, Rebecca, and Ensemble), "End of the Movie (reprise)", "Real Life Fighting is Awkward" (sung by Adam Schlesinger) Rebecca prepares for her audition at the community theatre musical revue, and Valencia is disappointed after she expects a proposal from Beth.

Meanwhile, Greg prepares for the soft reopening of his father's Italian restaurant with help from Heather, and Darryl struggles with accepting that Paula is interviewing at other firms who are offering her more money.

She makes a few small revisions to the lyrics, but when she presents them to the director, she is insulted and told to perform the song as originally written.

Nathaniel agrees and decides to walk out on stage and sing Rebecca's rewritten version, but the director demands that the curtain be closed before he is able to finish the song.

At Serrano's, Greg is surprised by the soft opening's high turnout, given that he believed the restaurant failed due to "West Covina turning its back".

Songs: "Love's Not a Game" (sung by White Josh and the Cast), "There's No Bathroom" (sung by Bernie ("Weird Al" Yankovic)), "Love's Not a Game" (reprise) On Valentine's Day, following dates with Josh, Nathaniel, and Greg, Rebecca has a dream in which she reunites with Dr. Akopian as a dream ghost who shows her different possible futures depending on who she chooses.

A 42-minute documentary about the making of the series finale, entitled Crazy Ex-Girlfriend: Oh My God I Think It's Over, was released on the CW Seed app on March 30, 2019.

[71] On August 6, it was reported that the role of Greg, played by Santino Fontana during the show's first two seasons, was recast with Skylar Astin in order to "explore how perception changes.

The critical consensus reads "Carried by the exceptional Rachel Bloom and her equally talented castmates, Crazy Ex-Girlfriend's final season further explores the depths of Rebecca's mental illness with humor, heart, and humanity.