Villain Represents Flush

[TrueBritt]

1-2 NL at Sandia Casino in Albuquerque
I have a TAG image
No general reads on Villain other than the hands I mention below.

I raise to $10 in early position with QQ
I get 4 callers

Flop: ($50) 2c4h6c
I bet $40
Villain calls
Turn ($130) 2c4h6c 5c
I check
Villain bets $80
I fold
Villain shows... AhTh!

Great move by Villain.

Villain had represented a flush before and bluffed me out of a pot (when I had the nut straight). After that, I had called him down in a hand and he had had the goods. So he's got me totally confused about when he has it and when he doesn't. Of course I considered in this case that he might be falsely representing the flush, but I also knew that he knew that I remembered his previous move, and I thought that he might be setting me up, and actually have the goods this time.

Primarily though, what I'm thinking on the turn is: what could he have called on the flop other than a flush or straight draw? I put him on one of those, and both got there, so I folded.

Is there any defense against this? Should I not check on the turn when the straight/flush card comes? Does that show too much fear, thus opening the door to a bluff?

I'm definitely going to incorporate into my repertoire calling on the flop with nothing when there is a flush draw on the board in the hopes of representing it if it comes.

[quarkncover]

Stack sizes are very important in this hand, when posting in the future make sure you include stack sizes. Do you have the Qc? That would also affect my decision.

My standard line (depending on stack sizes) would be to lead turn for 2/3 PSB and fold to any further aggression.

Need stack sizes.