Ouch, should I have slowed down on the river?

[mewalrus]

Villian is running 57 16 2.2
PokerStars $3/$6 Limit Hold'em - 6 players
Hand Converter Tool from DeucesCracked.com

Preflop: Hero is SB with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img]
UTG folds, MP calls, CO folds, Button folds, <font color="#FF0000">Hero raises</font>, BB folds, <font color="#FF0000">MP 3-bets</font>, <font color="#FF0000">Hero caps!</font>, MP calls.

Flop: (9.00 SB) Q[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#FF0000">Hero bets</font>, MP calls.

Turn: (5.50 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#FF0000">Hero bets</font>, <font color="#FF0000">MP raises</font>, <font color="#FF0000">Hero 3-bets</font>, <font color="#FF0000">MP caps!</font>, Hero calls.

River: (13.50 BB) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#FF0000">Hero bets</font>, <font color="#FF0000">MP raises</font>, <font color="#FF0000">Hero 3-bets</font>, <font color="#FF0000">MP caps!</font>, Hero calls.

Final Pot: 21.50 BB

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