To be honest, this is the first I've heard of this... I've never experienced any bashing between gay/lesbian friends of mine. I had a roommate once, who was a lesbian, and her best friend was a gay male (with a good age gap between the two). I'm used to that between the two groups. Obviously, this isn't always the case, but anger tends to come from fear/intimidation. But the reason for that, I'm not sure. It would be nice to get some insight from others.