You will feel good when you focus on your personal changes and make goals for "you". If you focus on your W and why she's doing/acting/saying whatever, you will feel upset. If you try to make goals about "her", then you could be setting yourself up for disappointment. You can't control her, do you can set goals for her. That is one of the reasons for backing away emotionally. You need some time and space to set about improving yourself.
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!