Gosh seeker,
I have followed your experiences over the last year, and now something new is happening!
Now that I know you a little I am going to be brave and say that IMHO you may be putting out lots of friendly vibes and men are picking up on that.
The question is - what do really want to do about it, in your own heart? We can give lots of advice but I think that you will be guided by something deeper inside yourself.
Also I'm sure you wouldn't want to hurt someone who was genuine and kind either, so I would say to be clear with him about not being sure at the moment. As always, this is only my own view.
Good thoughts, M