Indeed. It's one thing to let your H disrespect you, because you're an adult and it's your choice to let it continue.
But your kids don't deserve that.
Now would be an excellent time for a 180 -- not only should he not act that way towards them, but you won't stand for it any more either.
You can do it. He may move out again, to test you or to "punish" you, but I think he'll come around.
Me: 44, Wife: 39 M: 17 years T: 20 years Bomb on 08/25/09 1/13/10: MC started 1/28/10, 2/8/10: More bombs 8/28/10: Wife moved out No talk of D, no movement