I used to think that I was more bisexual because I do find some women really hot and because...well, there is a twisted logic to this that made sense at the time. I tend to compartmentalize confusing stuff and stuff that I can't properly deal with. So I slept with men, and I saw myself as attracted to people of the same gender. Since I was obviously female on the outside and since I have some attraction to females, I did some kind of transference thing and came to the conclusion that I was bi, maybe 90% attracted to men and 10% attracted to women. I intellectualized my sexual orientation.
The more I saw myself as FTM, the less bi I became. Now that I've broken through the confusing FTM barrier--I don't think that the term FTM is quite adequate, since it implies an inherent femaleness that I don't really feel--and have realized that I'm not really female, I don't feel bi at all. Well, just a tiny bit, one percent. The possibility is there, but I don't think I'll ever act on it.
Such a mess. I have a female body. I've been awash in female hormones all my life, I've been socialized as female. I have quite a number of stereotypically feminine characteristics (although most of them are just roles and perceptions). How can I still feel that I'm a guy? What causes this? I'll bet my chromosomes are XX, too. I just don't get it.
I like things to be neat and logical. It drives me nuts when they aren't.