A couple of the gay guys I know actually have really fat female friends. My theory, is that these are the only good looking men that will give these cows the time of day. I think they just friendzone themselves with these gay dudes, secretly hoping that maybe they'll overcome their gayness and fall for them. That, plus it makes them feel better about themselves for their fat cow asses to be seen in public with a good looking guy that not everyone immediately knows is gay.
Like seriously, there is a decent looking gay dude (no homo) that lives in the otherside of the duplex I live in, and I've seen like 10 300+ women at his house in just the last couple of months.