AJs -- am I leaking?

[Entity]

I noticed when looking at my last 19k hands of 1/2 6max, my folded to river bet % is much higher than most (~49%). I'm not sure if this is because I often check the turn against very loose opponents with overcards and fold to a river bet (in multiway situations), or because I take my hands too far in general. Here's one I thought was interesting, does this indicate a leak in my game?

Villain here is unknown, everyone else is loose/aggro or loose/passive. Had I not picked up a double-gutted draw on the turn I would have folded to the turn bet, but should I have folded to a flop bet?

Party Poker 1/2 Hold'em (6 max, 6 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is Button with J/images/graemlins/spade.gif, A/images/graemlins/spade.gif.
UTG calls, MP calls, CO calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, UTG calls, MP calls, CO calls.

Flop: (9.50 SB) 8/images/graemlins/club.gif, 8/images/graemlins/heart.gif, Q/images/graemlins/diamond.gif <font color="#0000FF">(4 players)</font>
UTG checks, <font color="#CC3333">MP bets</font>, CO calls, Hero calls, UTG folds.

Turn: (6.25 BB) T/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP bets</font>, CO calls, Hero calls.

River: (9.25 BB) 7/images/graemlins/heart.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP bets</font>, CO folds, Hero folds.

Final Pot: 10.25 BB