Not sure if this helps or not, but I question my orientation at times too. I'm not the type of person that needs to label myself, but if I had to, I consider myself hetero-romantic bisexual. I fantasize about females but have only met one in real life that made me think "wow, she's hot" in a sexual sort of way. Most of the time when I fantasize about men, there is a female involved as well, but I connect better emotionally with men in real life. I can't see myself in a relationship with a woman. To me it is purely sexual. I think I could act on it if given the right opportunity, but I'm not actively seeking that opportunity. I have enough issues with having sex as it is, I don't need to make it more complicated for myself. No one in real life knows of my slight interest in women, but many people do wonder if I'm a lesbian (I'm not). I get held back from trying it out because I don't really want a relationship with a woman, and I've come to the realization that I'm comfortable with the idea of sex only within a committed relationship (not necessarily marriage, but a long term relationship).