Jesse tells Diego she can't marry him. Then we go forward four months and Jesse gets a job as a nurse's aid but quits when she can't handle it. She does however get it back later. Diego returns having quit his job at UCLA because he got his old job back since funding was given for the art department. He surprises Jesse by popping the question again but she still says no.
Jesse joins a car pool but Little John's red ants infest the car so she gets a ride back with Diego. Linda won't leave Diego's place.
A flu epidemic breaks out at the center where Jesse works. Carrie gets mad at Jesse for calling a monkey at the zoo stupid. Linda fears that Little John is becoming a geek.
Jesse's plans for a little barbecue are shot to hell when more people than are invited show up.
Kurt starts a rumor that Jesse is a thief. Linda thinks that Diego is in love with her after he accidentally sees her naked.
Jesse and Diego's relationship is fired up again while trying to change a flat tire on Jesse's car.
Jesse tries to win Diego back and gather up the nerve to ask him to marry her.
Dr. Danny and Carrie go out on a date and Jesse tags along when she finds out that Diego and Irma where once engaged but she left him at the altar.
Jesse has a Christmas party.
Jesse revives a squirrel and then it runs rampant; however, when they find it's dead. Diego has a snow fight with Little John and his friends.
Diego gets passed up for a teaching position so Irma takes him to Niagara Falls to cheer him up but scares him off. She tells him she's going to change into something more comfortable but comes out in a wedding dress and proposes to him. That leads Diego to go back to Buffalo and apologize to Jesse for having proposed to her when he came back to Buffalo from California. He now knows how it feels to get asked out of the blue to marry someone. Jesse and Diego get back together but hold off on getting married. Kurt slips a disk in his spine while trying to lift a heavy box at work. At the hospital Jesse gets asked out by the attending doctor but passes on his offer when Diego shows up and wants to get back together. Dr. Danny feels uncomfortable around the attending doctor.
When Jesse's car is stolen she goes looking for a new used car. Linda's mechanic gets her a good deal on an '84 Volvo so she takes it but while out driving it with Diego she notices her old car in an alley. She reports that she found it and when she shows a uniformed officer its location it isn't there anymore. While out driving again though they notice it again at a different location but it gets destroyed.
Linda doesn't want to go to her high school reunion because she doesn't feel she's accomplished anything since graduating.
Jesse recounts the events leading to the birth of Little John when Diego tells her he wants a big family.
Diego returns from Chile with a moustache and decides to shave it off when Jesse asks him but changes his mind when Dr. Danny tells him he's whipped. Linda gets a job as a campus security guard and takes her job too seriously.
Jesse earns a blue jacket at work. She wanted it because nobody believes she works there. Diego accidentally sets his house on fire but thinks it was Linda's fault because of the mess she refuses to clean up in the kitchen.
Diego has the winter blahs and Jesse tries to cheer him up by buying tickets for them to Bermuda but Diego's passport was hidden in his old fridge and that was sent to the dump. They head to the dump to try to find but have no luck so Jesse gives the tickets to Danny and Carrie.
Little John accidentally sees Jesse naked when Diego spends the night and Carrie challenges Linda to a boxing match.
Kurt tries to teach Jesse to be a phlebotomist, Diego doesn't get his professorship and he has to share his studio with a British guy who's really rude and doesn't respect his space. Diego gets fired for smashing a nude painting of Jesse over Dawson's (the British guy) head.
Facing deportation again Diego marries Linda because Jesse didn't want to but then she changes her mind but it's too late.