I am probably calling this down he checks flop then just flats then all this action on a 2 turn?? seems fishy to me. I guess you get it in and hope he has JJ. I don't see anyway I fold this except misclick. But this board does hit his range if we put him on small pp / sc he could have hit a set or higher 2pair. I think this is a tough spot but I would call to get a good note... If he has a set it's not likely 2's since you hold one.. so that means he checked and flatted a flop with a set.. that would be a good note to have.