Lucy,
Listen - I called to talk to my AH's counselor in rehab also, about him not coming home after rehab. I didn't get the support there I expected. This jerk put me on speakerphone then went on about how my AH was sitting there crying, devastated, etc. Then they whined about how he had no place to go, followed by silence while they waited for me to say, "Oh well, then he can come here.".
I was so mad I could have spit. I had told this counselor several times about the nasty letters I was getting from my AH in rehab, they totally disregarded me.
Anyway, I just wanted to warn you, that you might not get any support from that area and to be prepared for it. Stick to your gut feeling on this Lucy, he doesn't need to be disrupting your and the kids lives at this point...no way, no how.