Jayscott, I have been reading your posts, and I am glad to hear about the recent action you have taken.
You are a wonderful father, and you must protect your son from his mom at this time. You are so kind to care about what is about to happen to your AW, but as much as we love our As, we MUST love ourselves and our children more. We must. We are the only ones we can save.
Truth is, as you well know, that you have no choice. She will not stay "nice", the merry go round will keep turning, and you have to get off, and take your son off with you.
Stay strong, I am sending lots of positive energy your way.