Think I may have said all this before, but better safe than sorry. Don't tell the kids until a few days before implementing H's leaving. I think it is best for the kids to present this as a joint decision so they don't blame their dad. Also, I don't know what H means by putting a positive spin on it. In any event, I think it is important to (1) give them an opportunity to express normal emotions such as anger, sadness, fear, etc. (instead of denying or trying to change those emotions with positive spin) and (2) re-assure them that despite those emotions that they and you and H may be feeling, everything will be alright. Did you get my journal entry on telling the kids? You can glean the points for the talk from that. We got that advice from a very good child psychologist. Also check out that sandcastles website.
Good luck, and hugs, Nomo
M 39 W 39 M'd 10 yrs; T 14 yrs S7 D4 Bomb 5-8-05 W not working on M 1-22-07; EA 2-22 DB 4-10 S 6-11 No more C Link