So here is the weird thing. I had a very lonely marriage, but I lived in a house with kids and a wife. We were more roommates than anything, and barely spoke (my wife and I, that is).
So last week I move out. I now live in a cabin outside the town of Fairbanks, Alaska. (I lived in Fairbanks before.) Now I am lonely, but I discovered it is easier for me to be lonely when I am alone, than to be lonely when I am living with someone who ignored me.