Jesse's like a bar of soap: the tighter Adam holds on, the faster Jesse slips away. Or that's how it feels to Adam. It doesn't help that Jesse has a girlfriend back home and claims to be straight, but there's no way with all the sparks and physical intimacy flying between the two roommates.
When Adam believes he has reached his ultimate happiness, the bedroom walls come crashing down with a visit from Jesse's girlfriend.
Now Jesse has to decide if he can come to terms with his sexuality, while Adam has to learn to accept that Jesse might never be able to crawl out of the closet.