You have made so many positive changes. Yet she seems to want what she wants so badly, that she's turning a blind eye to all the progress you've made...and all your hard work.
On the other hand, you've achieved the grace in which your 'more of the same' is you being a kind, loving, and attentive husband. Since she can take that and still think badly about you, that shows me this is about her and not about you at all.
I'm sure you are feeling frustrated and discouraged.
It seems like she's just using whatever you do as ammunition against you.
Even the good stuff she's using as ammunition.
You are in a tough spot, my friend.
Have you had any wild thoughts about what you can do that would be a 180?
I believe in you, KAW. I think you are a good husband. Whatever decision you make, I'm sure will be the right one for you.