First, most gays do not know rejection of any kind. Gays are very promiscuous and regardless of physical attributes, most never say no. Sex for them is an obligation. At work gays are celebrated and promoted. They live there life in a cultural bubble. The littlest thing, like a bake respectfully refusing their business, is an affront of the highest order.
I seem to identify with LGBT people on a number of levels having experienced bullying as a child (the activists make a big stink about bullying in schools) but based on my experience as a drunk, may I also suggest the notion that LGBT people may be using sex as their “drug of choice”.