Have you ever had a friends with benefits relationship with a man whom you developed feelings for, and once you came clean about them, he admitted it was just sex for him.....but then after you pulled out of the set up, his lack of feelings for you suddenly flipped, and he wanted a relationship?
i had a FWB on and off for.. 3, almost 4 years. I eventually fell for him. And came clean and a week or two later he ended up telling me he loved me. We started to officially date/boyfriend girlfriend status a month or so after that. then a few months later he cheated. said he loved her.
i just.. i'd leave it alone. if he has feelings for you, and you want to pursue things, do it slowly, cut out all the sex stuff and see if the feelings still stay.
I had a similar situation. When I confessed my feelings to him he said I was too young for him to date(yet he could smurf me) then I got serious with my current got pregnant and all of sudden he wanted me.