Opponent is 30/23/20 about 100 hands (which means hes most likely not a regular, since I have a couple hundred hands on those), AF is high (10) but on that sample this could be anything. Unfortunately i do not have any history with him. For this hand analysis I want to assume that he is reasonable postflop and not some kind of maniac.

I feel super uncomfortable continuing with this hand oop. In position, I think I can easily call (with the Kh) and continue. I block one heart and there are no open enders on the board. Folding seems a little weak? Can we reraise/fold here?