Nate wakes up in Natalie's bed with a hangover and no memory of what happened the night before.
After meeting Todd's new girlfriend, Natalie, Marni fears she and Nate may not be the perfect match, so she tells Nate he should date Natalie.
Nate scuffles with a homeless man at the ATM, and Marni, seeing the incident, thinks Nate was deliberately cruel to an innocent vagabond.
While at a funeral, Nick stands in the Communion line and accidentally accepts a wafer, which he then tries to return without further embarrassment.
Nate's mother (Valerie Harper) dislikes Marni when they meet, so Marni goes all-out to win her over, accidentally losing her in the process.
When Marni and Nate agree to spend an entire week in her apartment to escape the city, they go stir-crazy, but each is unwilling to break the pact.
Nate mistakes Marni's friend Carole for a therapist and confides everything about his life to her.
When all of her friends get Marni birthday gifts, Nate succumbs to the pressure and gets her a gift, despite her wishes to the contrary.
The morning after turns out to be less than the romantic day Marni and Nate had envisioned.
When Nate stops at the hospital, Marni's co-workers mistake him for Raoul, her fictitious boyfriend created to impress them.
When Marni invites herself over to Nate's apartment, he decides to keep the lights turned off so she cannot see the mess.
Nate believes Marni's friend Todd hates him and uses his disability to gain sympathy from her.
Brilliant and neurotic Nate meets eccentric and upbeat Marni, and the two find themselves drawn to each other despite a world of differences.