KQs on button - isolation 3-bet gone wrong

[Fiddler]

If the others had paid any attention they must have thought I was a rock, my VP$IP so far was 12%. I think at least BB and MP had noticed. BB was kind of passive and loose pre-flop and seemed pretty straightforward post, if he called he had decent pair+kicker/draw. MP was tighter and open-raised more. SB was hard to get a read on but he was extremely loose pre-flop.

Paradise Poker 1/2 Hold'em (5 handed) converter

Preflop: Hero is Button with Q[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises</font>, <font color="#CC3333">Hero 3-bets</font>, SB calls, BB calls, MP calls.

Flop: (12 SB) 8[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, MP checks, <font color="#CC3333">Hero bets</font>, SB calls, BB folds, MP folds.

Figured I could fire one more and see what happened.

Turn: (7 BB) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

River: (7 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Final Pot: 7 BB

Ok, berate me.