AQ OOP vs. tilty villain - $50NL

[TheStinky]

While I was waiting for my blind to come around, this guy got rivered twice. So I knew he was feeling a bit tilty. I'm never sure how to play AQ OOP, and what to do when this situation comes up on the flop. Please advise. Thanks!

Poker Stars - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $52.15
Hero (BB): $50.00
UTG: $104.35
MP: $13.25
CO: $45.00
BTN: $49.75

Preflop: Hero is dealt A[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (6 Players)
3 folds, <font color="red">BTN raises to $2.00</font>, SB folds, <font color="red">Hero raises to $6.00</font>, BTN calls $4.00

Flop: ($12.25) 3[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $8.00</font>, <font color="red">BTN raises to $21.00</font>, Hero calls $13.00

Turn: ($54.25) 4[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets all-in for $23.00</font>, BTN calls all-in for $22.75
Uncalled bet of $0.25 returned to Hero

River: ($99.75) 2[img]/images/graemlins/club.gif[/img] (2 Players - 2 All-In)

Pot Size: $99.75 ($3 Rake)