Urgh I have this pretty much. I've thought about it a lot and sort of come to the conclusion that I tend to fancy people who I have a chance with ... and there aren't many openly gay/bi girls around where I live, not ones that aren't doing it for attention as you said there are a lot. So yeah, I think I'd fancy a lot more girls if I met more bi/gay girls. May be the same for you, I don't know, but something to explain it maybe