Isn't everyone's sexuality a little bit different then eachother? Even within the main established sexualities?
There's a possibility you are gay. There are men that back decades ago that would get married and even have a whole family and still be gay. They were, I'm guessing, attracted enough to their wives to have children with them, but It didn't completely do it for them. They were still gay and still attracted mainly toward men.
But then again. You are mainly you. As long as you are as honest as you can with yourself and others that you are involved in, then I'd say just keep tabs on it and it might become more revealing with time.