I'm so sorry, Is. This is beyond awful. I'm having a rough morning, too. Mine is more about coming to terms with my loss - but, hurting is hurting, right?
Ironically, my tears have been about our children, too, although mine are all adults. They are disgusted with their father, and don't reach out to him. But they feel guilty about doing that, so they don't really reach out to me, either. They would answer if I called, but I am sickened that they are even in this position to begin with.
How H can say "they'll be fine" is really beyond me. Yes. They'll be fine, eventually. But why hurt them in the first place? H is so tied up in his selfish pursuits, he is oblivious to the pain he's leaving in his wake.
So - yeah. Rough morning. I just wish, that like you, I could fly off to Greece for a week! Look on the bright side, Is. You're off on an adventure while you think a bit. Please take at least 10 minutes a day to enjoy yourself. Don't let W ruin this for you, too.
Detach. Tell her you're going to do a lot of thinking while you're away, but don't tell her about what. Maybe it'll shake her up just the tiniest bit. That's all I've got today.