Gwen, I think a bit of us worries that this is really all our fault, even when our heads tell us otherwise.
It is one thing to own a part in any relationship rift, but what most of us here experience is different.
My intermittent glimpses of my xh husband show me that this is a very strange and troubled human being who still isn't happy. Our work on ourselves does pay off, and we reach a place of calmness and stability.