Bummer, Aran, but at least you're being adult about it...You need to be civil at the least, friends at the best to do what you need to for the kids...
I'm wondering what's in the water these days, there's just too much of this going on...
Sorry to hear about your troubles. I have divorced twice. It is not easy by any stretch. Seems to me that your way of handling it will help you through.