I'm a gay woman. I've always been gay, but it took me FOREVER to realize it myself. I've always felt like this, and I didn't know that it was abnormal. It was pretty much a "But I'm a Cheerleader" epiphany, if you've seen that movie.
"Huh? You mean that most girls don't think that girls are hot and attractive, and don't really see the supposed appeal of the male form? Seriously? You mean that most girls actually find guys sexually attractive? BEING EXCLUSIVELY ATTRACTED TO GIRLS MAKES ME GAY?! ...oh. That explains a lot." I didn't even know that gay existed until I was in 7th or 8th grade. I just assumed that girls found a guy that they got along with, and the guy just served a function, and as a companion. I assumed that everyone thought that girls were really hot.
...Yeah, I was a pretty clueless kid. Apparently everyone, including my dad and my friend, knew that I was gay before I did. THEY COULD HAVE TOLD ME. D:<
I didn't realize until my freshman year of college. Yeah, I was THAT clueless about myself. I felt so dumb. When I told my dad, he just told me that he'd known since high school, and didn't really care one way or the other. My friend just snorted and said, "yeah, tell me something I don't know."
Hrmph. At least one person could have pretended to be surprised.