$50NL: TPGK in 3bet pot, cbet gets flat called

[finho]

villain: 18/13/1 (150 hands)

How concerned am I when he calls my cbet? Don't think AF1 is floating me. Am I giving him too much credit if I don't see him having a worse A here since he is pretty tight? Maybe he is peeling with 77-QQ and making me fire again. I can't fold here in a 3bet pot, when I hit pretty much the best flop I can ask for. OOP should I just keep betting unless he plays back, and if I am behind, just donk off my stack? Or check turn to induce a bet from a PP, and then value bet river if checked back.

Poker Stars
No Limit Holdem Ring game
Blinds: $0.25/$0.50
$61 effective stacks

Pre-flop: Hero is SB with Q[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img]
<font color="#cc0000">CO raises to $2</font>,<font color="#cc0000">Hero raises to $6</font>, CO calls.

Flop: A[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] ($12.5, 2 players)
<font color="#cc0000">Hero bets $8.5</font>, CO calls.

Turn: T[img]/images/graemlins/heart.gif[/img] ($29.5, 2 players)