I think you are handling it perfectly.. look at her texts. She is super forward and trying to win your affection. She WILL text you again. Maybe not for a few days. But she will. She may wait until Friday night after drinking or whatever.
The point is, you set expectations with her that you don't put up with second class behavior. You may lose her, but still you ALSO set expectations with your self that you won't put up with people like that.
Effectively you set the bar higher for yourself on a VERY important part of a relationship which is trust, which is an amazing thing that very few men do.
I predict she will text you back and you can then engage in the conversation re-inforcing that you don't put up with liars or second class behavior. Don't over do it, but be firm. Remember this gal cheated on you while engaged... lying is CERTAINLY in her back of tricks. She may not be able to change so you be sure you are strong enough to move on... and when you do, you will expose yourself to MUCH better women.
Good job man.