[stigmata]

Both hero and villains play looks pretty fishy here. There's no way you ever check the Ac/Qc on the button with that flop, which is the hand you are now representing. In fact, MP3's play is less suspicous than yours, he could well have just missed the flop check-raise.

I think it's far easier and cheaper to win this pot by just betting the flop and going from there.

But now you have got yourself in this situation, the pot is really quite big. You only need to fold villain around 1/5 to break even. I think it was a profitable play, although a smarter/ballsier player may well have spotted what you were up to.