Take it from someone who went through the exact same thing. It's going to take awhile for the hate and anger to go away.
Aside from the comments that everyone is sending your way, just remember this...you are still going to have to talk to her in a civil way because of your kids. You can't let them see you disrespecting her and as hard as it is, you have to take the high ground for their sake.
It was the hardest thing in the world for me to do and it took alot of detachment to do so. Let the anger and hate all out. You are entitled to them.
Have you talked to her yet about it?
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.