Live 20/40 turn semibluff

[Xyven]

Playing headsup 20/40 after the table broke against a really nitty guy at TS. I've been running good and he thinks I'm a donk, but still folds way more than he should. I raise A [img]/images/graemlins/diamond.gif[/img]7 [img]/images/graemlins/heart.gif[/img] and he 3bets. I call and see an 89T rainbow flop. I call his flop lead, and the turn is a 9 [img]/images/graemlins/diamond.gif[/img] putting a 2flush on the board. He bets and I raise.

Good spot or spew?