[jason_t]

You shouldn't raise anywhere and you should call this river.

In spots like this, the guy either sees your 3-bet as an attempt to start a pissing match and he caps in kind or he has a true monster. In either case, you don't want to put yourself in the spot of being pushed off the best hand nor do you want to put in a lot of bets with the second-best hand. It's best to close your eyes and just hit call/call/call.