Oh, I didn't realize he never got married. I guess the fact that he's single while being ridiculously attractive could mean something. He doesn't have a lisp or any of the dead giveaways though.
Dude, have you ever even met a gay man. Not everyone of us is a walking stereotype. Almost none of us are.
It's true though that if he was very flamboyant it would make a lot more sense to be speculating about his sexuality. Of course not all gay men are super camp, but super camp people tend to be gay in my experience so I think the stereotype makes sense. Come on, you can guess when a lot of people are gay, not all, but quite often. It's not even a bad thing.