Karma, I am also going through this. I don't think I am quite as far along as you are at this point. I am employing the LRT. I backed off immediately when she dropped the bomb. The GAL has been critical. I have worked pretty hard on it, and it has paid dividends as far as my mental health is concerned. I am also trying to use the whole D process as an opportunity to show her we can still work together as team, and that I care very deeply for her. A big 180 I've done in addition the things I've done to GAL is addressing conflict directly instead of avoiding it. This was a big issue in our M, but now we're forced to deal with it, unless we want the whole D process to be more unpleasant than it has to be. I am desparately hoping that the process will turn around at some point, but if it doesn't, I've been working hard on myself, and there's little doubt I will be the better person because of all this.
