Double cross?

The whole damn time...! :)
Nicky gets the 1,2 million dollars, partner says "Don't take your eyes from it!".
I think "Oh, she's gonna take the bag!"

Nicky and girl are at the superbowl with the bag of cash in hand, asian guy starts betting with Nicky, I think "Oh, she's working with them, and they're going to steal the bag!".

Three years pass, and Nicky see girl at the party, I couldn't really work out an angle for her, but no matter what I kept thinking "Oh, she's going to steal something from him!"

It was almost a disappointment when she never did! :D

Was waiting for it the whole time. Kind of glad it didn't happen. In the 3 years later I thought she was running a big con and that she was the one who got Nicky brought in to be a patsy.

I did 
That may have been the point :D