AA facing turn overbet.

Villain seems like a thinking player altho a bit loose preflop. I keep running into sets with my Aces so I might fold them too much. I just couldn't understand why he would bet so much. Why not check to me as I would probably bet again? I almost called for this reason. It looked like he didn't want a call at all. But then again players at these stakes often push/overbet made hands hoping for a call.
What do you think?

Party Poker No-Limit Hold'em, $ BB (10 handed) FTR converter on zerodivide.cx

SB ($180.35)
BB ($105.19)
UTG ($50.25)
UTG+1 ($74.10)
UTG+2 ($19.20)
MP1 ($89.19)
Hero ($48.35)
MP3 ($51.80)
CO ($60.65)
Button ($53.70)

Preflop: Hero is MP2 with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.25. CO posts a blind of $0.75.
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">4 folds</font>, BB calls $2.

Flop: ($6) 3[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $3</font>, <font color="#CC3333">Hero raises to $9</font>, BB calls $6.

Turn: ($24) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $45</font>, Hero folds.

Final Pot: $69