Okay, so basically you're with a girl and you're getting into it (no f@$#ing), I'm talking about tongue wrestling, disgustingly hot make out that would make you cringe if you recorded it and watched it (okay maybe hot not that heavy, but you get the point). You make your move and she denies it. You act cool about it and continue what you were doing before, and all the sudden she's ready to hump like bunnies.
Is this theory correct, because I've read if you make your move and rejects you that you act cool about it and continue whatever you're doing, then all the sudden she's all over you.

Thats sort of it in a nutshell, withdraw your attention and then resume or let her continue the make out. Doesn't always work, but not being reactive is the best counter to any rejection imo. What I would have given for these forums when I was on dates a few years ago! haha

Yes indeed, the theory is somewhat correct. If she is heavily making out, and suddenly stops, be unfazed, do what you wanted to do, and dont do it in words but actions. Read a little up on LSR and ASD(Last second rejection, antislut defense) for more info on this.