And how do I show her I am capable of moving on when she knows I want to preserve the marriage?
How do you think you would show her? You show her that you are moving on.....by really moving on.
Look, she is divorcing you. You have to stop thinking of every move as some strategy that's going to open her eyes and change her mind. You haven't detached, and doing things as a family with her, hoping she'll see what she is giving up.........doesn't work!
Now, you are wondering how tough you should get about the things she wants in the D. It sounds as if you still see it as a strategy and thinking if you just hand her everything she wants......it will soften her heart toward you. Forget about when she'll wake up. When are you going to wake up?
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!