There is no reasoning. NO compromising with this woman. No getting through. NO talking. It's her way or the high way always has been. Now it's her way if I'm lucky enough to tell you what it is way.
I agree with you. The only thing I have ever seen change this type of woman (or man) is to put her (or him) in a crisis. Most people don't change until they are in a crisis. The crisis could be when you tell (show) her you have hit the "high way."
I had a good friend of mine go through the same thing with the same type of woman. This had gone on for years. He finally hit the high way. She has been calling my wife in desperation to get him back for the last YEAR. She still hasn't given up on trying to get him back. It took him finally manning up and realizing he not only didn't need that crap in a relationship, but didn't want it and didn't have to accept it... ( I thought to myself... It IS about time)
She now realizes what she lost and toyed with for so long. A good man that loved her and would do anything for her. She always seemed to want something more. Never living in the now.
If what you say about her is true, then there isn't a one of us on here that can give you the correct thing to say to her. Why? Because there isn't a correct thing. A person who is uncompromising can never be compromised with. Sometimes the only way to get through to these types takes drastic measures. Either way, you win....
Maybe when you are done with her, she will disagree with that too huh?