Well, I'm a 20 year old guy who's never showed any interest in girls, lol. I've even been asked out a few times, and turned them down every time. Then again, I've always used to say "Games are more fun than girls." when someone asked me why I didn't have a girlfriend, which was entirely true at the time, so I suppose they don't have any reason to think otherwise at this point.The one thing I learned form my experience is that people will only see what they want to see. I was so sure before I came out that my parents already knew I was gay. I was an 18 year old boy who had never ever had a girlfriend, much less even shown interest in a girl, and I voluntarily watched Gilmore Girls, Desperate Housewives and Grey's Anatomy. The fact that my mother hints constantly to my sister that she needs to find a boyfriend and never even approached the subject of me finding a girlfriend made me think "heyyy... yeah they totally know." So when I flippantly told them, I honestly wasn't expecting much of a reaction.
But they had no freaking clue whatsoever. Apparently despite the 83 clues I'd left them, the fact that I wasn't effeminate in my mannerisms or speech apparently made it impossible to figure out. So yeah, I'm not surprised that they picked up on none of your clues lol.
My mom does already know as far as I know though. (Unless she forgot or something. I can't honestly tell. lol) I told her not to tell my dad because I wanted to do it myself, and then just never did. I decided that it didn't matter enough, and if he ever actually asked me, I would tell him. For some reason, I just feel like I need to now though. I don't know why.