Jill is sued for breaking up a marriage and Jack begins to doubt her relationship with Matt when Jill insinuates that Jack may not be the only lady in Matt's life. Meanwhile, Audrey frets when Barto starts hanging out with a female study buddy; Elisa continues to hunt for her mystery man; and Mikey gets an unwanted promotion that requires him to fire one of the waitresses.

Jill's suspicions are aroused when he sees Matt with another women, and he contemplates telling Jack. Meanwhile, Jill's tactless girlfriend offends Mikey.

Barto takes Audrey to meet his snobbish parents after she overhears his mother's invitation on the answering machine. Meanwhile, Elisa finally gets to man, and Jack and Jill get stuck in the laundry room, ruining their dates with Matt and Allison.

As Jack ponders Jill's passionate declaration of his feelings for her, she learns Matt has gotten an offer for a job in Washington, D.C.

Jack chooses between Jill and Matt; and Eliza swears to Jonathon that she doesn't want anything for Valentine's Day. Meanwhile, Audrey injures her leg.

New roommates Mikey and Eliza clash when she becomes too chummy with one of Mikey's dates. Meanwhile, Jack and Jill spar over saying "I love you."

Barto starts seeing the ghost of his mad school cadaver after he tries and fails to save a bystander suffering a heart attack, Jill asks Jack to pose nude for his photography class.