Yeah I know man. My W told me that she was unhappy during the whole MR - which was news to me because I remember plenty of happiness. She had rewritten the entire marital history, and it made me feel like $hit.
You come to realize that they have distorted the history to justify and rationalize their decision. So, you have to let it dust off your shoulders - easier said than done, i know.
That's why slow down, reflect, and GAL. All good stuff for self-care. You are not as horrible as she's making you out to be. And if I read it correctly, I think this is totally about her and her issues, and nothing to do with you. jujuB has already pointed that out so I won't regurgitate.