Help i dont know what to do
I hope by now you have been able to reach someone, our own Chat Help Line is open 3:00 PM until 12:00 AM AEDST (link top of this page).
I guess it is not a surprise someone can act as your husband has in such a situation. Whatever the facts behind the separation are it can be a real blow and shock to lean of it, and you aren't really going to be able to control what he says. It's a pity he has to vent to a child.
The main thing is for oyu and the kids to remain safe. Don't hesitate to ring 000 if you feel threat threatened by violence.
Is there anyone to support you at the moment? A parent perhaps. Do you have somewhere you and the children can stay for a bit?
As Geoff say please let us know how you go