To Block Or Not To Block

My intention is to meet someone and be monogamous. In the mean time, Ive had an on-going F-Bud for the last year. We never have exchanged numbers, we just message each other on Grindr. He is Ridiculously effing hot. A while ago , I thought he wasn't interested in meeting any more, and so I asked him if he was over it. And he said "Im always up to see you, I hope you feel the same way"... and we continued meeting up.Lately, I get the sense he really is over it now. He hasn't responded to me since he came back from vacation, and the last couple of days hasn't been on grindr at all. I know that we don't have anything serious between us, and he's free to do what he wants. This still sucks though. My mind keeps imagining that he meant someone else who turns him on more, ect. I really don't like how this feels. It hurts and I don't want to be in this situation any more. They say that men can separate sex and emotion. I'm not sure if that's true for me. I do take this personally and I don't like it. Should I just block him and move on? I feel like If I ask him if he still wants to hook up it will make things awkward and ruin what we had. Maybe I shouldn't say or do anything and in my mind decide that its over. I want to find something more meaningful anyways.