QQ hand...trying to spot a set

[dbitel]

Full Tilt, .5/1 9way..no read on villian. Villian has $96 and i cover

Villian limps from UTG+1, poster in MP checks, I raise to $5.5 from MP with QQ, only villian calls

Flop ($13.5): 5 [img]/images/graemlins/spade.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/heart.gif[/img]

Villian bets $13.5, I call

Turn (40.5): 9 [img]/images/graemlins/heart.gif[/img]

Villian pushes for $78 I fold


Shoul I be raising the flop...if so, how much? Do I fold to a flop push? do I presume every1 folds the turn push?