Misplayed AK out of position

[djeric1]

Borgata 40-80 Saturday night... okay game... We're playing 7-handed. I've only been playing for a few orbits, so no great reads on villain, other than he has been raising and 3-betting a fair amount PF... hasn't gotten to showdown yet.
On to the hand...

Villain raises from UTG+1, folds around to me, and I 3-bet A [img]/images/graemlins/spade.gif[/img] K [img]/images/graemlins/heart.gif[/img] from the SB. BB folds, villain calls, and it's heads up. Flop comes T [img]/images/graemlins/spade.gif[/img] 5 [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/spade.gif[/img]. I bet, and villain raises. I just call (?). Turn comes 7 [img]/images/graemlins/spade.gif[/img]. I check here, villain bets, and I just call again. River comes Q [img]/images/graemlins/heart.gif[/img]. I check again, villain bets, and...

I feel like I misplayed this hand horrendously from villain's raise on the flop, but wasn't sure of a better line at the time given that I had no read. Anyone donk the turn or even c/r the turn? As played, do you call or fold this river against an unknown?