it sounds like you are having a tough time. I am sorry that you have not seen any improvement in your sitch. I am right there with you, with my STBXW. Sometimes, the WAS is just bound and determined to move on, for whatever reason. Maybe they just can't come to terms that things can change. Maybe they are too proud to admit they want to come back. Possibly they are just too broken and hurt, and they must move on to save themselves. Who knows! I think that yours and mine is probably the normal scenario. Turning things around and reconciling is the probably the exception to the rule. I know that doesn't sound great, but perhaps you will have a little comfort in knowing that there are a whole lot of us here that are in the same boat.
I wish I had an answer to moving on. I think we all wish we could more easily. unfortunately, it just takes time and work. Keep your GAL activities running, and try not to focus on W. I know that is easier said than done. I also struggle with that. It just seems so unreasonable and strange. But, it will get better. Keep posting! Keep journaling!