If you decide to write a book for publication (and I advise against it), I recommend strongly you also decide on a publishing law professional to assist with the editing. If not edited EXTREMELY CAREFULLY, you are really opening up for yourself a defamation claim.
I think it is fine to write your personal experiences down in a journal or a diary as a private release to built-up tensions, anxieties, anger, whatever. Publishing your experiences for the world to see (or for the few who may buy the book, at any rate) is generally a very bad idea.
I also hope for your sake that you do not decide to continue your relationship with your ex by using the court system to keep the relationship alive, as much as you can control it. These types of contentious relationships fed in the courts harm everyone, especially the children.
Good luck.
Appreciate the feedback once again.
Outside of the divorce this is the first litigation I have opened, and is in response to her threats to me coupled with her frivolous lawsuits. Necessary as a means to an end in order to put this to rest once and for all, hopefully. I think you have defined her behavior to a 'T', although I do not think she is trying to keep the relationship alive. I think it comes down to one very simple thing, her inability to take ownership for any of her choices, and her internal need to find something to blame on me, in order to keep that mentality of 'see, it was him the entire time' alive. She has mental issue and she has put our children in danger, and I took the steps needed to protect them. For that she will never forgive me, as it involved her boyfriend going back to prison. He spent 15 years in, he is a child sex offender and he shot a house up 28 times putting 4 lives in danger. He was out for 10 months before she moved in with him (while we were still married and had not yet even filed for divorce), and now she is alone and it is, of course, all my fault. It will forever be my fault, and I have accepted that.
The only outcomes I hope from this, are that it finally lets her know I am not going to sit idly by and allow her to attack and threaten me any longer; and gives me a certain level of protection if she decides to act on her rage. I have no contact orders in place with the probation office for her b/f, and also written into the divorce, to protect these kids. So I feel that I at least have a legal leg of support to stand on now for both of them, should they decide to make any irrational choices in the future.
Hopefully not, but I don't survive on hopes.
I will consider your thought on the book as well, I had not yet considered that angle.