It is heartbreaking and frustrating watching kids go through this. My kids are each handling it in different ways, it is really the hardest part to experience and each one has said things that have crushed me. They are also resilient and incredible people.
One suggestion is let the kids pick out stuff for their rooms - decorations, bedding, etc. My kids loved this -- they picked out stuff online, and partly I surprised them. It really helped. It also helped me focus on some positive things during the move.
At the same time, all 3 of mine, at some point, have absolutely crushed my heart:
D3 - often before bed, randomly breaks down and buries her head in the pillow. "Don't leave me, I'm going to miss you" D5 - "I don't want to live in 2 houses, I don't want to go back and forth" S7 - "What if mom deletes your phone number and forgets where you live and we never get to see you again?"
I think the best you can do is exactly what you are doing... nothing but business with W, no drama in front of the kids.
