I would play it the same way, and I dont event think its a close decision.
You must be ahead the vast majority of the time on the flop and river, and you have to bet it.

The river raise probably means you are beat by a flush, but heads up I think he is betting AK, AQ ,AJ , AT or simply bluffing often enough to make it worth a call.

Another less important reason is the metagame issue : A fold will make unpleasant river blufs later in the game more likely.