Treasure, I really don’t know how to quote you correctly on this:)
The last couple of paragraphs you wrote about the post MLCer not likely to be a good partner. I completely agree with that for most MLCers. They were avoidant people their whole life to begin with. Avoidant of doing the inner work. It is a far stretch for them to overcome such massive deficits after MLC to become some amazing person after spending their life avoidant of inner work.
It can happen. My MLCer did the work and is now a whole, healthy, amazing partner and father.
That said having watched the process and how humble, dedicated, steady, patient, steadfast etc he had to be after his MLC towards all of us. It’s a very sacrificial walk for the MLCer(and LBS). One I don’t believe most MLCers are capable of. They may look back in regret or wish they were able to repair. That is like wishing you were in shape without doing the work.
Most simply will be unable, unwilling or not given the chance to do the work and make things right. The much easier option is to move on. For my family both my spouse and I said early on, it truly was easier for us both to just move on. It is not an easy journey and no promise of some amazing loving spouse after.
That said, it does happen and in my case it was worth the effort. He still has ptsd from the deployment that started all of this. He still has to battle that daily, but I do fully trust him again and believe in him fully. Each situation is different. For my spouse he had a very strong faith before MLC. After the deployment he hated God, and me. I knew he would eventually get right with God in my heart, but had he waited even a month longer we would not be together. I had plans to move to TX two years ago, he knew he had to either step up or get out of the way because he was about to watch another man raise his children and love his (ex)wife.
Their is nothing unselfish about MLC. If they get right, come back, it’s usually because they are at the end of their rope so to speak. Their life in shambles. Not necessarily because they regret all of their choices. The regret comes later once they are more healed. The apology, humbleness, dedication to making it right comes after they return still broken. So taking them back is very difficult imo.