The strategy is to read the book and follow the steps.
I dont understand your attitude to/about your children. She texts about them and you dont answer? You say her parents are doing childcare for HER and you are moving away after divorce. But what do you want out of your relationship with them? Do you have 0 custody?
Stop with all of the passive aggressive interaction with her. There is nothing to gain. Stop telling her so much and let her love her life. Theres nothing to gain from all of this confrontation and discussion. Go and live your life as you say that you are. Let her notice your change - you dont need to rub it in her face.
