May be she can't go two weeks with out talking to u so that she can come back and again make it worse for u..
Don't let her do that to u..
U have to decide now if u can really trust this girl enough to let her come back in ur life..
Or if not then talk straight to her..
As i have told earlier the more u keep things up to u the more it will complicate..
Tell her u don't want to talk to her or have any contacts with her..
Hope u can do that..
Be strong..
All the best..
I'm sure u will get through all of it..