Friendsmaybe -- where are you meeting guys? How are you going about it? And why are you generalizing all gay guys as bitches? I don't think most guys on this site -- the ones who post in the forums at least -- are bitches. After that post, though, some guys might be inclined to be a little bitchier to certain Portland-are folks. It's a cycle, bitchiness and small-minded meanness. We sow, we reap, yadda yadda, etc., etc.
To answer your question, though,...same reason most gay drama occurs. Insecurity, I suspect. Makes people do all sorts of weird things. Then again, it might be your approach. I thought your profile was funny, and I appreciate a bit of humor. But to be honest, reading this thread topic put me automatically on the defensive, ready to get rowdy and fight. If that's the vibe you put off on first encounter, I'd say that might be a part of the problem. If you are a nice, funny, 'good' guy, you'll find plenty of the same out there...don't get jaded. You haven't mentioned how/where you meet guys or what your selection criteria in going after guys are, though, so it's hard to be more specifically constructive here.