Repost.. please someone advice?

I see where you would feel alienated and hurt by your childrens' actions but you have to realize that they don't know everything you had been thru. They don't know how much happier you are without him and while I'm sure they're upset about the separation in general (cuz no one wants to see their parents split up, no matter how old they are), they are only being fed HIS side of the story... If I were you, I'd just give it up. They'll come around when they're ready and they'll hear you out when they're ready. Its not your fault that they're acting like little kids. You're doing the right thing by being the better person in this situation and focusing on yourself. One day, they'll understand (hopefully). If they don't, that's not your fault or your problem... You love your kids obviously but they're grown ups now and you aren't responsible for explaining yourself to them at all.