Hannah receives the results of her STD tests: she has contracted HPV. After an accusatory conversation with Adam about him being the one who infected her, Hannah then comes to the conclusion that Elijah Krantz, her boyfriend in her last two years of college, is the one who infected her. After a discussion with Shoshanna about the issue, Hannah decides to confront Elijah, although she also decides to use that opportunity to reconnect with Elijah sexually, despite the issues which led to their breakup. Hannah learns much more during her meeting with Elijah, that new information which changes the focus of their discussion. Meanwhile, Marnie is feeling more disconnected from Charlie, especially following what she considers a selfish act by Charlie but one which he did for humanistic reasons. She in turn starts to fall for artist Booth Jonathan primarily because he's everything that Charlie is not. And Jessa starts work as a babysitter for the Lavoyt family. She treats the job in a laissez-faire attitude like she treats everything else in life.

Hannah's diary makes Charlie reconsider his relationship with Marnie, but is she ready to let him go? Hannah pays a visit to Adam's, but finds herself excluded from the fun part. Jesse meets her ex, who has absolutely no intention of sleeping with her.

The girls go to a warehouse party in Brooklyn. Marnie discovers Charlie has a new girlfriend. Hannah meets Adam and learns something new about him. Jeff comes to see Jessa, but ends up in the ER. Shoshanna accidentally smokes crack.

Marnie moves out of the apartment. Hannah considers the idea of Adam moving in. Jessa invites everyone to a mystery party.

Hannah throws a housewarming party with brand-new roommate Elijah, but it's hard to move on when she's still playing nurse to Adam. Marnie gets bad news at work and a visit from her mom; Shoshanna avoids Ray at the party; and sun-kissed Jessa returns from her honeymoon.

Hannah gets unsolicited musical attention from heartbroken Adam and displeasing opinions on her writing from Sandy. Elijah questions his sexuality; Marnie makes a career compromise when her curatorial dreams are crushed; Jessa revels in married life; Shoshanna and Ray make magic; and Elijah and Marnie harbor a secret.

Hannah gets a new freelance gig, and her editor suggests that she should try cocaine for the first time to write about her experience. In the process, she gets to know her downstairs neighbor, Laird. Meanwhile, Marnie meets her old artist flame, Booth Jonathan, who takes her home to show her his studio.

Elijah moves out, and Hannah invites a group including Charlie, Audrey and Marney to dinner. Jessa meets Thomas-John's parents, which finally prompts a confrontation between husband and wife. Shoshanna discovers that Ray may be living with her.

Marnie invites the girls to her mother's friend's beach house for the weekend. While there, Hannah runs into Elijah and the girls learn a lot about themselves through each other.

After conducting an interview with Patti LuPone, Hannah becomes scared that Adam will change due to his being cast in a Broadway play. Meanwhile, Jessa receives an unexpected visit, and Marnie is depressed about her lack of success.

Hannah worries about her relationship with Adam, Marnie starts working at an art gallery, and Shoshanna surprises Jasper and Jessa.

Hannah and Elijah have dinner with Patti LuPone, Jessa looks for a new job, and Hannah, Shoshanna and Elijah attend Marnie's open-mic night performance.

The girls each face life-altering news and decisions.

Marnie and Desi perform a live duo, while Hannah prepares for her big move to Iowa.

Hannah moves to Iowa, where cheaper rent rates and the seemingly trusting nature of the locals impress her. She struggles to settle in amongst her Grad school classmates, who find her fiction work offensive and poorly written. Elijah surprises her with a visit as he has started to find New York grotesque.

Jessa and Adam become AA pals and Jessa gets into trouble with NYPD. Seems unlikely that Hannah long distance relationship stands a chance. Marnie is hitting the wall in her personal life but her singing career seems to finally going in a right direction.

Jessa gives her opinion on Marnie's new song. Shoshanna and Ray go shopping together. Desi gives Marnie news that makes her smile. Hannah writes an apology letter that doesn't go over well. Then she learns of the new things in Adam's life.

Adam's new girlfriend reveals a surprising revelation that can tear apart their relationship, while Hannah and Ray make big career decisions.

Hannah begins a new job and goes on a date with a co-worker. Mimi-Rose hosts an art show.

Hannah is confronted with a family dilemma; Marnie makes an announcement at Ray's campaign party.

Marnie micromanages her upstate wedding to Desi; Shoshanna is tasked with carrying out Marnie's wishes; Fran has an awkward moment with Adam; a dejected Ray steps in to help Desi

Fran moves in with Hannah due to his unstable roommate; Jessa and Adam spend time together at the carnival; Hannah visits her dad; Elijah has a new love interest; Ray's coffee shop is losing customers.

Shoshanna finds her beloved new life in Japan threatened, Adam and Jessa's complicated friendship continues, and, upset at finding photos of his ex-girlfriends on his phone, Hannah sends nudes to Fran.

Hannah and Fran have an exaggerated argument and she is left feeling hesitant about their relationship, Desi makes another thoughtless decision without consulting Marnie, and sparks begin to fly between Jessa and Adam.

After a fight with Fran, Hannah spirals into anxiety, Jessa fears Hannah discovering her relationship with Adam, and Elijah has a rude awakening.

Hannah bumps into an old frenemy, Marnie encounters more problems with Desi, and Shoshanna offers to help Ray save his business.

A newly inspired Hannah prepares for a writing event, Marnie asks Ray to go on tour with her, Shoshanna basks in her newfound success, and Jessa and Adam's relationship starts to crack.

Hannah gets an assignment to write about a female surf camp in the Hamptons, where she meets an uncomplicated water-skiing instructor; Marnie tells Ray that he needs to spend more time at his own place.

Hannah provides cover for Marnie's secret weekend in Poughkeepsie; Shoshanna enlists Elijah to be her plus-one at a networking event; Jessa's antics lead Shoshanna to reevaluate her post-college friendships.

Hannah interviews influential writer Ode Montgomery; Adam storms off the set of his latest acting job; Ray considers the course of his life after a regular at the coffee shop dies suddenly; Marnie is confronted with her narcissism.

Adam and Jessa begin shooting scenes for their film; Hannah's mother has a hard time accepting the next phase of her life; Marnie does a less-than-stellar job of being there for a grieving Ray.

Marnie tries to convince Desi to follow through with their planned gig at her mother's birthday party; Hannah gets advice on an important decision from her father and his new partner; Elijah helps a co-worker run lines for an audition.

Elijah prepares for an open-call audition for a new Broadway musical; Marnie tries to pawn a family heirloom; Hannah reconnects with Paul-Louis.

Adam has surprising news for Hannah. Jessa spends a day off on her own. Shoshanna has a run-in with Abigail.

After an important meeting, Hannah reaches out to friends for advice, but has trouble reaching Marnie.

Elijah prepares for an open-call audition for a new Broadway musical; Marnie tries to pawn a family heirloom; Hannah reconnects with Paul-Louis.

Hannah and Fran have an exaggerated argument and she is left feeling hesitant about their relationship, Desi makes another thoughtless decision without consulting Marnie, and sparks begin to fly between Jessa and Adam.

Hannah moves to Iowa, where cheaper rent rates and the seemingly trusting nature of the locals impress her. She struggles to settle in amongst her Grad school classmates, who find her fiction work offensive and poorly written. Elijah surprises her with a visit as he has started to find New York grotesque.

After a fight with Fran, Hannah spirals into anxiety, Jessa fears Hannah discovering her relationship with Adam, and Elijah has a rude awakening.

Hannah bumps into an old frenemy, Marnie encounters more problems with Desi, and Shoshanna offers to help Ray save his business.

Hannah gets a new freelance gig, and her editor suggests that she should try cocaine for the first time to write about her experience. In the process, she gets to know her downstairs neighbor, Laird. Meanwhile, Marnie meets her old artist flame, Booth Jonathan, who takes her home to show her his studio.

Adam and Jessa begin shooting scenes for their film; Hannah's mother has a hard time accepting the next phase of her life; Marnie does a less-than-stellar job of being there for a grieving Ray.

Fran moves in with Hannah due to his unstable roommate; Jessa and Adam spend time together at the carnival; Hannah visits her dad; Elijah has a new love interest; Ray's coffee shop is losing customers.

Marnie tries to convince Desi to follow through with their planned gig at her mother's birthday party; Hannah gets advice on an important decision from her father and his new partner; Elijah helps a co-worker run lines for an audition.

Hannah provides cover for Marnie's secret weekend in Poughkeepsie; Shoshanna enlists Elijah to be her plus-one at a networking event; Jessa's antics lead Shoshanna to reevaluate her post-college friendships.