AQ 3-bet pot deep

[Profish2285]

Villain 3 bets very light. Also, I saw him take the following line with a set. 1/2 pot flop, crai all in on turn when flush hits. I really think he is capable of doing this with a lesser hand as the board looks like it didnt hit me. I also called played a mid pp like this against him on a ragged board and he ended up hitting on the river. What does everyone do here?

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

Hero (BTN): $63.65
SB: $43.70
BB: $32
UTG: $21.35
CO: $24.70

Pre-Flop: Q[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] dealt to Hero (BTN)
2 folds, <font color="red">Hero raises to $0.85</font>, <font color="red">SB raises to $3</font>, BB folds, Hero calls $2.15

Flop: ($6.25) Q[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $3</font>, <font color="red">Hero raises to $8.80</font>, <font color="red">SB raises to $15</font>, <font color="red">Hero...</font>