Since the Villein is unknown it may be hard to put him on a hand.

Bet your QQ stronger PreFlop.
Eliminating hands like A6 67.

As is: Call the Flop and Fold to the bet on the Turn.

I think you had him but with out more info its hard to call.
He is representing the set and you have no sure read on him since the Villein is unknown.

So did you Fold?