Tough spot with a strong hand

[Entity]

Folded to me in the CO and I open with A[img]/images/graemlins/diamond.gif[/img]Q[img]/images/graemlins/diamond.gif[/img]. My opponent, who I have stats on but no great read (he hasn't been too loud so far so I haven't seen a ton out of him), coldcalls OTB. He's 30/8/1.2 or so. Higher turn and river aggression than flop aggression from what I can see. Small sample so may not be worth a ton.

The flop is Q[img]/images/graemlins/club.gif[/img]7[img]/images/graemlins/club.gif[/img]J[img]/images/graemlins/diamond.gif[/img]. I bet, he raises, and I 3bet. He calls.

The turn is the 8[img]/images/graemlins/club.gif[/img]. I bet and he calls quickly. The river is the Q[img]/images/graemlins/spade.gif[/img]. I bet and he raises.

[img]/images/graemlins/confused.gif[/img]