If you can tell us more about the relationship since you were first with her, it would help us to see the story. Do you have any idea why your W has suddenly decided she wants out?
What did your W use to talk about when she was upset at you? Did she complain about certain things you were doing or not doing? Why would she say you were emotionally abusive? What does that mean?
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!