My only advice is to read the book Divorce Busting and go to the online forum
Divorce Busting® - Solve Marriage Problems, Save My Marriage, Save Your Marriage, Stop My Divorce, Stop Your Divorce They recommend that you give her space and start living your own life. I know this sounds impossible. This is your only hope. Don't make the mistake of begging and trying to "get her back". She was never "yours" in the first place.