asmok

Pooner, no matter how we think and how we think you should do, it all comes down to what you want to do.  

If you go back with her, then the question will be how many times you can handle being back stab by her?
If you dump her now, then the question will be can you cut all contacts with her?

From our point of view, it's a clear decision. But can you handle the consequence of those actions?

Maybe try to set your mind to predict what will happen base on her trends. At that time, you'll see how many times the cycle goes around which will help you make your decision.

Sorry, I'm only bring you more questions to help you understand yourself. Most of the time you already made up your mind and you just need someone to confirm your decision is right.

asmok

Base on Pooner's comments so far, I get the feeling the u want to go back with her in your mind already. You know that's not the best option for you, but you want someone to tell you it's the right decision.