You can talk to your kids without lying AND without putting them in a position where they will blame either of you. You can also say things like "I don't know" and "let me think about your question" and "its complicated" and "its an adult problem" and etc, etc, etc. I struggled with this a lot, but after reading and consulting experts I am convinced its in your kids best interest to not be given an "opportunity" to blame either parent.
Crying is fine. Its ok to tell the kids your sad. But should also reassure them that you will all be fine.
Hope it helps.
Nomo
PS - as for the talk with H, do lots of listening. Gather info. If your not sure of your response, don't respond right away.
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