Where did the two of you meet?
How long have you been friends?
Has he ever been intimate with a man? a woman?
It's possible he does have a curiosity about your lifestyle. It's also possible that he hungers for a male role model. Either way, I know it's flattering to have him around you, for either reason. You have to be careful and make sure that he knows what he wants, and for that reason I think that you are right, it might be better to take a wait and see attitude so that the friendship itself doesn't get affected. If he's attracted to you, then time will show and he will grow more affectionate as time goes on, and eventually those feelings will manifest on their own. If he's looking more toward you as a father figure then you don't wan to ruin that either as it could still be a rich and rewarding relationship as well. If you are only interested in being with him as a lover, you will have to decide if you can be friends with him if he's not willing to be that....and if not, consider cutting ties or slowing down on spending a lot of time together. At the moment, spending time together is ok, as long as you're not feeling like he's taking advantage of you or leading you on. I welcome your thoughts, let me know if you want to talk more.