My motto for dealing with my ex-wife and her anger: Focus on your children. Love your children.
She is motivated by money. She divorced me when my earning power seemed unable to support her stay-at-home mom fantasy. She was a 10 - 20 hour a week worker. But she wanted me to return to the corporate machine, and I wanted to negotiate an alternate route.
I took the idea of a collaborative divorce to heart. But in the end there was no collaboration. I lost all my issues. All that "collaborative" meant was that I wasn't going to sue my soon-to-be-ex during the negotiations of our divorce.
The non-custodial parent is treated a bit like a second-class citizen in the legal system. If you want to go for 50/50 divorce parenting, I think you'll need an attorney. I also think it's worth it, if you want to spend as much time as possible with your children.