Losing my M is sad. Losing my family is sad. Losing my XW is no longer sad. She didn't want to work on us or on herself, so I was fighting a losing, uphill battle.
I feel this way too.
I am keeping my ring but probably will have the diamonds removed and made into something for the girls when they are adults. I have no idea what xH did with his ring. Don't need to know, really.
You are very right, you deserve someone who can fully love themselves, and you. I think we had those people (I believe our spouses loved us once, still even in some situations) but they changed. More likely, they didn't change, but they just came to crossroads in their lives and they didn't have the proper tools to handle.
You seem well adjusted and wanting new things for yourself. That's great.