You're kind of getting away from your original question there. I'm skeptical of anyone who says their sexual orientation is a choice. I've tried drinking Dr Pepper. I couldn't even get one of them down... I thought it was awful. There's no way I could choose to like them. On the other hand I love Coke. I didn't choose to like Coke. That's not the best analogy but it's early
In reality there is no way I could choose to be attracted to men any more than I could choose not to be attracted to women.
You're getting bogged down in semantics. Or denial. I'm not sure anyone is going to be able to make you understand the difference between celibacy: choosing not to have sex, and asexuality: not having any interest in sex.