flopped a set with a flush on board

[muckyouraces]

$5-$10 NL game. just sat down. no read on anyone yet. everyone has about $1000. MP raises to $40.
I call with 5 [img]/images/graemlins/diamond.gif[/img] 5 [img]/images/graemlins/heart.gif[/img]. BB calls and UTG calls. (5 players) Flop comes Q [img]/images/graemlins/spade.gif[/img] 8 [img]/images/graemlins/spade.gif[/img] 5 [img]/images/graemlins/spade.gif[/img] UTG player bets $80. the raiser folds, and I call, the other players fold (we are heads up now). the turn is a 2 [img]/images/graemlins/heart.gif[/img] he bets $130 now, and I just call (thinking he has a flush and I am drawing to a full house). river is a A [img]/images/graemlins/diamond.gif[/img] He checks to me. I value bet $130 and he check raises me all in. Should I have checked the river? should I have played after the flop differently considering the flush on the board and so many players seeing a flop?