My worst nightmares in the early 1990s were ones where my wife and I were doing… something. Dining out. Watching a rental movie while passing pints of ice cream back & forth. Driving somewhere together.
Then I would wake up, and I was still divorced and alone.
Sometimes the happy memories made me feel like I was never going to be that happy again.
Fortunately for me, this turned out not to be the case. I hope life will turn around like that for you, Dennett!