If you have people who have met her, then your far better off with there advice then ours, but here is my gut feeling.
You gave her your number. If she didn't call, then she is playing the part to get the maximum money out of you. Some people would give her more money if she played the slut, some if she played the "girlfriend". Her intuition let her to realize your the later.
If you really want to know, ask her for her number. If she gives it to you, then you know there is an option for more, if not, then you know she is just extremely good at what she does.