Basically it left me feeling like I've now pushed her out... And honestly like ice just doomed things
Her choices are why she's moving out and whether or not things are doomed. If respecting yourself means she can't bring another person into the M, then why would you say YOU pushed her out? Were you willing to continue the way things have been recently?
If you will act as if you are already D from her, it will be the best thing for both of you. You will learn to detach and move on with your life. She will get a reality check and maybe come out of the fog. I can see how being separated would be emotionally better. There have been others who S and when the WAW finally got her head together, they were able to reconcile. However, many couples try to have in-house S (whichne er works) and things continue to get worse until she divorces him.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!