But I am thinking that since he is a bit younger, didn't contact you for a while, and then went flirty, his motivation is more fun than commitment. So I don't think that's why there was delay. I think during the delay he was getting the fun elsewhere.
Of course it really could be A, in which case all of the mindreading is hogwash!
I would die for some PT, and it would not at all have to be sexual.