OP here, and once again, remember that I said that he handled the situation decently, and that I understand that he is uncomfortable (I
REALLY don't like it for reasons stated and unstated, but I understand it). If someone is truly as uncomfortable in a situation as Potential Roomie[sup]TM[/sup] said he was, it's their prerogative if they want to get out.
Now that being said:
Dystopia said:
As a women, I would obviously refuse to share a room with a straight man. I wouldn't be expecting him to fancy me, but first of all, it's a possibility (and vice versa of course), and secondly, I would feel very uncomfortable sharing such close quarters with someone who was sexually interested in my gender.
So who am I supposed to room with?

And does it matter that I mostly just like girls?
generals3 said:
-snip- Firstly he may not know how to act with a bisexual, i mean there might be some verbal taboos like homophobic jokes and he might feel "verbally restricted". -snip-
With a bisexual, you act like s/he's just a person, because that's all we are. People. *Hippy music starts playing*
As for jokes, ones that involve homosexuality? That's fine. Jokes that are in poor taste? Can be alright okay, but go in the "dead baby comedy [http://tvtropes.org/pmwiki/pmwiki.php/Main/DeadBabyComedy]" bin. Jokes that are homophobic? Never okay.
Exactly the same as racist or sexist or XYZBBQist jokes. Those jokes are never okay. Jokes in poor taste can be alright, and jokes that just involve race or sex or barbecue are always fine.