Kimmerz, If you feel comfortable enough to have your h around on Easter to watch the childern's egg hunt, then by all means invite him. He may attend, but don't be too disappointed if he says he has other plans...leave the invitation as an open one for him.
Please keep in mind that you may never get the answers to all of your questions because he doesn't have the answers either and he's still on a mission to find them. In some instances, the mlcer will not share everything w/us because they don't want us to know, i.e., they think we'll use what we learn against them or they will appear "weak" to us.
Now about the PA behavior...mlcers that are PA tend to behave this way throughout life, but once mlc hits, the PA behavior is far stronger than it was pre-mlc. This stronger tendancy occurs w/all of the behavior traits in all of the mlcers. My take is that while they are fairly normal pre-mlc, they are able to control it a bit better, therefore it is more subtle. However, while in mlc, the emotional state is out of control, therefore the behavior traits are set free and more evident.
It's okay to do a temperature check, but keep your expectations at zero at all times. I do hope that if he comes, he will behave himself and not exhibit the anger towards you so that you and your family can enjoy the day.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
