I think c/c river is the way to go just because he's betting the turn with AJ every time since he won't want to risk giving you a free river with Qx/Kx so we really only have a bluff catcher. I think the rest of the hand is fine though, flop call is somewhat questionable on that board, but I really don't know if you can just give fish credit for a min raise on a board like this. It's impossible to tell if they think top pair is the nuts or if they think they are being tricky with trips or if they think they are going to get you to fold to their QK or if they are just clicking buttons.

wow,didnt expect him to have that,i thought he would have 3bet u pf or flat the flop.I dont know why he took this line,he cant just put you on qq,kk,aa and you prob dont have a 10 and theres only 1 jack left in the deck.So u have air here quite often,i wonder if this was villains plan all along,min 3beting u on the flop and checking behind you on the turn to make it look like he missed and for him thinking your gonna fire the river or hoping u hit your card,and then shove.or maybe he was just clicking buttons.

No, I mean from his POV, if you call a small raise on the flop, you probably have a hand that can call another bet on the turn. I was speaking to your belief that he might be overplaying a J. I think a J bets the turn always.

I'd probably c/c the river as played. I think his range is pretty polarised when he checks the turn back. You might be getting value from a mid pair but I think you pay off the stronger end a lot.