Well, I think rehab is a great step for him. I just hope he really takes it to heart instead of just taking the "I tried" attitude. If he can just be open, therapy can be so helpful. It's still early in the rehab process, so just continue to encourage him in that direction. Yes, your R needs work, but he can't truely work on that until he works on himself (so like you said, maybe a good plan of action is in order).
I think it is a great idea to let H know where you are at, so he doesn't feel like you are blind siding him. I remember that was on of my H's biggest complaints when I left that I didn't give him any warning and a chance to make it right (not that I think it wouldn't have made a difference at the time, but it would have been one less thing he is blaming on me). Now, how and when you should tell him are a little more iffy. I probably wouldn't do it today since it is one of the few times H is finally seeing you and S, so it might be good to once again, let it sink in what he is missing out on. Just take the time to really think about what you want to say and how to best get thru to him and then decide if it would be better to email or schedule something in person (I know you have a hard time wraggling him in for a meeting tho). Or maybe do a hand written letter to try something different (since he seems somewhat unresponsive to emails). Yes, you are on the D train, but there is still time for H to stop it, with like you said, anything that could give you some hope to hold onto. You deserve better than what he has been giving you, so if only he can give you that hope that there can be more and a true change in the M.
So sorry to hear about S. It's just so hard to be a kid. My S is fighting some little bug too. No fun! =(
Me 27; H 28; S 2 Togeth 9; M 4 Sep 11/14/08 EA OW1 Sep 08 EA OW2 Mar 09 EA OW3 Jun 10