Doc Hudson, I read your question to R2D2, on why, as an unmarried woman with no kids, she was putting up with her man's behavior. As another unmarried woman who is standing for her partner (as are other unmarried partners on this site), I believe the reason is similar for all of us. It is because we know who are partners were, we recognize the 180 change in them as not being normal, and we, like even one else here, pray that someday they will emerge from their tunnel and remember who we were and what we had together (though I also know, no expectations!)
I had been with my partner for 16 years, when the man I considered my hero, changed into someone unrecognizable. The change was so drastic that I called his doctor concerned that my partner was in a major depressive episode. Now he is deep in replay and in love with his soulmate, who conveniently was a former student of his and lived around the corner from him all these years! Normal? No. MLC like, yes. I stand because I know who he was and don't believe our life, though not married was a complete lie, though like times I do question my memories after listening to him rewrite history for so long.
Just wanted to speak up for R2D2 and the rest of the unmarried here.
And, nice to meet you Doc, always read your posts.