Reality is reality. To be honest, no one has ever asked me if I like being divorced. I miss my kids, but I see them very often. But I don't miss the me that was when I was married. And I feel good about life in general. I like me more now than when I was mmaried.
As for a more compatibel R, I am assuming that you would not have a R with someone more compatible until your situation is resolved. In which case, the new R would be either with your H or without him. Perhaps you need to think in term of LL's life and not a relationship. Can you live on your own if it came to that?
Life is not perfect. You are miserable. If you weren't, you couldn't be saying the things you are saying. It goes way beyond venting.
And if you are going to make a go of your marriage, you are going to have to confront the issues.