Though it took some getting used to since my husband was the one who first decided to move out (on?)...retired and went to a new job in another state. His first scenario was that he didn't love me anymore and didn't want to live with me. However, after a few months of really trying to figure out what had happened, he agreed that he did (does) still love me but prefers to live alone, at least right now. So I dealt with it the best I could and actually it's a pretty nice situation.
He calls every day and we visit every couple of months or so and those times are really SPECTACULAR. Yes, I do get lonesome sometimes though less and less as time goes on. I do know that I'd rather have a part of him than none at all. He's a good man, and I think, basically, I'm a good woman. We have history together and I can't imagine my life without him in some way.
We'll celebrate 45 years of marriage in December...so it's working for us.
I'm glad to see that others have the same kind of arrangement. I thought we were just strange.