Go find the books on Amazon (or similar). I also strongly recommend the book Love Must be Tough. I listened to it on audio book, you can do that in a few days easily.
Please provide a story of what happened and what has been the dynamics since she moved out. It will help everyone understand and give you better advice.
You should not have made that call, especially since its months since she moved out.
Me: 34 Stbxw: 30 D:5 D:3 Mini bd: May/June 2019 Married: Aug 2019 BD: 6th Dec 2019 OM Confirmed: Feb 2020 March 2020: I filed for D Waiting for D to be finalized and W to move out end of January 2021