Excessive turn 3bet or no??

[Lmn55d]

Party Poker 5/10 Hold'em (6 max, 6 handed) converter

Preflop: Hero is MP with A[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG folds, <font color="#CC3333">Hero raises</font>, CO calls, Button folds, SB folds, BB calls.

Flop: (6.40 SB) 7[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, CO calls, BB folds.

Turn: (4.20 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">CO caps</font>, Hero calls.

River: (12.20 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>, Hero calls.

Final Pot: 14.20 BB

[EvanJC]

any reads? minus a read, i like the 3-bet.