I realize now looking back I have been dealing with this for most of my marriage if not all. I seriously think she has a mental disorder but she will never admit that.
When a woman is spoiled all her life, or really just by her H, to the point she develops a princess entitlement...........why would you expect it to change now? When you were M, you basically stayed out of her way and let her do whatever she wanted. Now, she is just a female bully. She pushed you around when you lived with her, and she's still trying to push you around. This is not a mental disorder. It is a picture of self-centeredness at it's worse. (Expect, I don't really think this is as bad as it can get. Difference is that you have your eyes open, now).
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!