Ouch...

I need to check/call flop.. if he checks behind I have a clear bet....

ok now he is raising me delayed which makes like zero sense, but could be potentially a slowplay although I think most people would bet their sets on the flop but he can still have a hand like QJs potentially.

I still go for the call because this could be some random bluff and he made it quite small so I thought I would sometimes get to showdown.... it's also possible that he plays this line with JTs for protection on the turn...

the river is tricky but I think if he had a set he would still bet it for thin value, he also has to be a bit afraid that I have the Jack because I could have AJs in his mind.

Ok so all things considered I don't think I will be good often enough on the river although his line looks kinda fishy..

What could I have done differently?