Pocket 9's against overcards

[bags]

Very small sample of ~30 hands, but Villain has been loose aggressive preflop (raising Axo from EP PF) and passive post-flop.

PokerStars 0.05/0.10 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is MP1 with 9[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, MP3 (Villain)/ calls, <font color="#666666">4 folds</font>.

PF: I don't think there was anything tricky here.

Flop: (5.40 SB) 7[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Villain calls.

F: I can't decide if I played this correctly, but I didn't want to give him a free card if he didn't have the A.

Turn: (3.70 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Villain calls.

T: In review maybe I should check/fold this turn? There are two overcards and I can't figure out Villain as he is just too passive to this point.

River: (5.70 BB) J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Villain bets</font>, Hero calls.

R: At this point I figured he wouldn't fold to a bet with a better hand so I checked and figured I'd make a crying call and hope to heck that he had one of the bottom pairs on the board.

Final Pot: 7.70 BB