Your h may have a reason for being angry - see what he says, be a good listener, validate.
I saw this behavior with my h, this getting mad when I did things with our boys.
At first, he was so out in left field and never home, that he didn't seem to care what we did.
But as time went on, and he realized we weren't going to be sitting at home waiting for him , he didn't like it too much. MLCers will try to control you, control a situation. I have seen that they want to do what they want when they want and not answer to anybody, yet know your every move.
Live your life, do fun things with the kids - don't be afraid of doing things with them because he will be mad.
Otoh, don't purposely exclude him either. If he's around, invite him to go, but don't expect it. They can feel isolated from their family to begin with, try not to add to it.
Hope this helps!
Bomb January 2012 - doesn't feel the same about me
~ "There is nothing love cannot face; there is no limit to its faith, hope, and endurance."