Am I weak for checking this river? pp 2/4

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Party Poker 2/4 Hold'em (9 handed) converter

Preflop: Hero is SB with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="#666666">3 folds</font>, <font color="#CC3333">MP3 raises</font>, <font color="#666666">2 folds</font>, Hero calls, BB calls, UTG calls.

Flop: (8 SB) 6[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, UTG calls, MP3 calls.

Turn: (6 BB) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, UTG calls, MP3 folds.

River: (8 BB) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, UTG checks.

Final Pot: 8 BB

Flush came, plus an overcard ( wasn't as concerned about that, however)

Not a very interesting hand, just wondering how often this happens to people when the flush card comes and you bet and then get raised...