[__Q__]

It is very strange. Let me elaborate.

Your oppenent played the hand very strange. His betting out with the two makes no sense what so ever. The two couldn't possibly have helped him unless he was playing a pretty crappy hand preflop. If he was and it did, then he should check raise. Who knows, maybe He had A2 in the pocket. This all suggests he is a poor player. Probably loose agressive.

Loose agressive was your reason for trying to isolate. However, the problem is that you don't have a hand that you want to isolate him with. Assuming he doesn't raise a hundred percent of his hands, the hand you have probably isn't better that the avg hand that he would raise with. Lets say he raised with any pocket pair, any two face cards, and any ace. The only hands your ahead of him preflop are certain combinations of two high cards. Like if he was raising QJ or KT.

For what its worth, I probably would have called the river just cause of the pot odds.