Felicity hears a rumor that Julie has written and performed a vicious song about her. They end up stuck in the same car for several hours after the subway breaks down. The other passengers overhear their sniping and get involved in their argument. An older man forces them to realize that they were never really as good friends as they believed. Noel and Ruby begin dating. Sean invents a condiment called ""smoothaise"" that he believes will make him rich. Ben meets a pushy caterer.

Professor Sherman tries to set up Felicity with her son, who is several years older. Julie suggests that it might be a good idea to date a guy without worrying about the prospect of a long-term relationship. David turns out to be a petulant jerk, and Felicity storms out in the middle of dinner. He apologizes and asks for another chance, so she decides to date him. Ben and Maggie start sleeping together. Noel and Elena obsess over a video game.

A mono epidemic hits the campus. After Meghan gets sick, Felicity tries to avoid the bug by staying with Elena and Noel. Felicity frets about the fact that David has yet to kiss her. Noel accidentally says Felicity's name while kissing Ruby. Ruby is furious to discover that Noel and Felicity hadn't told her the truth about their past relationship. A stranger offers Ruby a business card, claiming to be a movie producer. She follows up on the lead and ends up getting a major role in a Tom Cruise movie. Ruby sleeps with Noel before departing for several weeks. Ben finds out that Maggie is married.

Felicity takes in a stray dog, but has trouble finding a place for it to stay. Elena believes that Felicity is using the dog as an excuse to not have sex with David. Lucky is diagnosed with distemper and has to be put to sleep. Felicity sleeps with David. Ben meets Maggie's husband when he comes to Dean & DeLuca to buy food for their anniversary party. Sean continues to fawn over Julie.

Felicity's parents arrive unexpectedly for Thanksgiving. She is afraid to tell them about all of the recent changes she has made in her life. The Porters, David and Professor Sherman all end up getting invited to dinner at Noel and Elena's apartment. Meghan shows up in the hopes of seeing everyone get into a fight. Felicity fears that David is becoming too serious about their relationship. Felicity and Noel get drunk from Professor Sherman's punch. They go to his room and reminisce about their kiss the previous Thanksgiving. Professor Sherman walks in on them kissing. An ugly scene develops, leaving Meghan delighted. Felicity breaks up with David. Javier recruits Ben, Julie and Sean to help him cater the Sherwoods' anniversary party. Maggie introduces her husband to Ben, ""the guy I've been sleeping with."" Ben realizes that Maggie was just using him to get back at her cheating husband. Sean and Julie console him as they dine on ""tofurkey."" Meghan forgets a promise to serve dinner to