This is a bind...a lot of us who have gone through bust ups on the fringes of the organization can relate.
How was you marriage before the searation? What was the major reason for the divorce? Has she said why she wants to get back together? Is that the actual reason she wants to get back together?
After my wife left, I tried everything to get her back and was still open to trying to work it out until the very last moment. I realized she wasn't the one for me. That's a statement you have to find out is true or not.