why worry about it? tastes change as life goes on, and as long as you're with someone who makes you happy, and you don't care about their hardware, it makes little difference. you might just not like the guys you see now.
i have a hard time liking some of the girls I see, and I don't even know them. i just see their behaviors and the way they live, and the way they don't take care of themselves, and I get just as turned off as I would if I was looking at a guy.
I get along with lesbians better than gay guys, though. Lesbians and I like the same things.