Hey, I had a similar situation a while back. Call her bluff, because that's likely what it is. And you mean "closed the deal" as in you two had sex, right?
Anyway, I had this happen a while back after I had sex with a girl on a first date. My problem was I messed up and she started to slot me as a boyfriend candidate and wanted to put me in situations where we would hang out, but I wouldn't get sex (ie, she knew she had to fix her image & start withholding sex after giving it to me so easily). Basically so I was "courting" her.
So, what I did was just cut her out. I stopped talking to her. She realized she wasn't going to win that one, so eventually she texted me wanting to hang out- and we did, and we had sex
Would love to hear more specifics on this one, though. It's hard to say what exactly could have happened. Do you have a field report up?
-NJ