Great last post! Now stick to it. Accept that this is going to happen and there nothing you can do to stop it. Every decision you make should be based on what's best for you and your children. Do not give any concessions in the process unless it's advantageous to you.
It's ok to keep future recon in your thoughts but it is best to move forward with the thought that it is not going to happen. Never ever say anything to give her the impression that you will be waiting around for her.
As far as your concerned it's her fuching loss and you are going to have a great life w/o her and she will deeply regret it someday.