Karen,

What a tough time.

I can tell you what you shouldn't do.

1. Tell him you miss him.
2. Tell him you want him home.
3. Try to change his mind.
4. Get hysterical.
5. Cry.

Helping him move? To be there or not?

I think he needs to feel the emotional weight of leaving the family, including your kids.

Plan something for you and the kids right after he leaves.

Theoden