What we don't know is CV's H's perspective. I'm convinced that he would have a differing perspective of what is wrong in the M.

What we also may not be fully aware of is what CV thinks SHE did wrong in the M.

From what CV writes, it appears that her H is trying from time to time, but we get CV's perspective of how he is doing that to try to manipulate her rather than what might actually be an honest attempt by her H to try to work out the problems.

CV's fear shows up as anger and resentment... what might actually be her fear that the M will actually be reconciled, meaning that her current perspective that her H is a bad person will have to be rethought. How could it be possible that her H actually is a good man with a couple things that he needs to work out, rather than the her stated belief that her H is really a self centred man who really doesn't care about her.

She still appears to be currently wanting to believe that the M will not be reconciled and therefore her own introspection is unnecessary. Her H will not be the person she wants to be with so she does not need to look at how she was in the M and how she can work on herself.