Daring, I'm following you, even if I don't post....not the most qualified to offer advice, especially when it comes to pursuit and distance dancing.... I'm in the thick of the same stuff you are.
I agree, though, that distance is best. I'm still learning myself, but for what I know, nothing we do now is real connection until they come through the full tunnel. I've not read one post on this board that recommended someone pursue and get closer to their WAS before the very end, and even then, they say to keep a distance.
I feel you, though. I am grieving and missing my old H. When I see glimpses, especially tears, I fall apart. But he is still running. He is still confused. My guess is yours is, too. The best thing is to get out of his way as much as possible, and allow him to figure this out on his own.