Regardless of what she will do, you still have to move on. The old M is gone, isn't coming back, and you don't really want it back cause for whatever reasons and combination of both your efforts, it's brought you here.
If you can move forward and detach, if she comes back you will be ready. If she doesn't come back, you will be ready. That doesn't mean you're not going to mourn and grieve right now. But you're going to do the mental work necessary to maintain your own perspective, control, and composure.
