Beth, I wouldn't want to "diagnose" anyone as MLC on as tenuous a basis as a couple of posts from their LBS, but I can tell you that it is quite common for WA's on this board to continue being very unhappy after dropping the bomb, moving out, whatever they think will make them happy. The "pursuit of happiness" gets a little frantic at times...and you get to sit back and watch him tie himself in knots pursuing pipe dreams.
I think at this point the key is to treat him more or less as you would an acquaintance...friendly and polite, but not fawning or clingy. Definitely don't be in a rush to respond...you have a busy life, after all! (And if you don't, work on GAL--I know it's difficult when all you want to do is curl up in a fetal position and cry, but it really does help.)
I'm sure some of our long-timers will have some great modifications to this, but what I would say (definitely wait at least 24 hours to respond, maybe longer) would be something along the lines of:
Sorry to hear that things are not going well. Hope they start improving for you soon.
Then add a line or two about something that you are doing or that has happened that is cheerful/positive/fun, and sign off with whatever signature you would use to an acquaintance (in other words, NOT "Love" or "Hugs" or "Kisses" or anything like that...you could use "Cheers" as he did).
That's my take on it...short, sweet, detached but friendly. Other suggestions from the peanut gallery?
Hang in there, pace yourself for the long haul...and try to find something to give you some joy today!
Peace, Dawn
Me 45/H 47, no kids Together since 1985; M/1992 Bomb1 (EA-OW1, age 22) 2001 Bomb2 (EA/PA-OW2, age 22) 10/2007, A continues H left 11/24/08 minimal contact, no legal action http://tinyurl.com/DawnHope1