Let's start all over again, the next time she contacts you, regardless of the content, just ask her out with something like:
"Hey I gotta go now, let's meet up this Friday at X time and Y place"
If she agrees, good. If she doesn't, say something like "Well, let me know when you've changed your mind"
And if she contacts you again after that, repeat the formula, but this time, if she still BS around, just block her number for good.
Anyway, it's TOTALLY OKAY for a man to want to bang that delicious pvssy at least one more time, so don't be too hard on yourself.