The idea of celibate vampires is ridiculous. To me, vampires are sex. I don't get a vampire story about abstinence. I don't care about high school students. I find them irritating and uninformed.
I guess in America we're so sold on this ideal of the perfect, well-adjusted family that is able to confront any conflict and, with true love and understanding, work things through. I'm sure they do exist, but I never knew any of them.
Most of us live in artificial environments and then we go to work in artificial environments and the world becomes something that you see through a window.
I think all writers are armchair psychologists to some degree or another, and I think a character's sexuality is fascinating. It's a great way to really get at the root of their identity, because it's such a personal thing.
Life is too mysterious to try to map it out. I've certainly lived long enough to know it will take you places you never thought it would take you - and some of those places are kind of wonderful.