I have a friend in RL whose H returned after 5+ years, as I said earlier.... she went through a long "middle". She says she remembers looking at a sign she has in her home that says "nothing is impossible for God", and just asking "when, God?" in despair.... but he did return.
I think again that we hear so few return stories because if and when they do return, the LBS rarely stay on the forums. They then concentrate on RL.
So again, we in the "middle", are a self-selecting group.
This is an excellent, thought-provoking discussion; it has stayed in my mind.
I think the middle is where it starts to really dawn on us that we truly can't "do" anything to make our spouses return. During the earlier part we are concentrating so much on first of all dealing with the shock, then when that calms down a bit we set about seeing what we need to do to work on ourselves, in between trying to understand what the h-e-double toothpicks is going on, then we try out a few ways of 'being' to see what happens (and yes, we try different things to see what kind of response we get from our spouses....) and so on.
In the middle we start to see that this just isn't going to be over quickly, either for them or for us. It's the point where we have lived on our own, or rather without them, for long enough that we've established a life, we waver between liking that life and worrying that we're moving ever further from having a life with them.
It's where we move from marking time to living our lives.
And, like so much of this and actually any major life-changing event, progress is so often only seen in the rear-view mirror.