What is going on in their heads?

[MrBond]

"We had a very good relationship for most of our time together and there was nothing to warrant this treatment of me."

I'm not saying that he should treat you negatively, but I don't see where he's doing anything to actually go out of his way to hurt you. I mean, he's trying different things that he believes will make him happy. Just because you're not in that equation doesn't necessarily mean that he's "hurting" you.

"I am not glorifying him at all - he is very flawed, but I gave him the best life he could have had. "

Okay now you're just mindreading. That's from your perspective. Evidently he felt otherwise. There are no perfect relationships.

I mention all this because it's a typical phase that LBS's go through. They start coming up with their own rewritten history where they were perfect and the WAS was always the wrong one. Then they stop their "changes" and go back to old habits and wonder why the WAS hasn't come back yet. It happens.