Relationship With Ex-Wife after the separation and divorce

I would like to start a topic on how we deal with my ex-wife after the separation and divorce. It seems to matter how the actual dissolution of the relationship happened. Thrown into the mix is the children that are involved. In most of the posts that I have read here, the divorce is one-sided. The reasons for the separation do not seem to matter as much as the way it is handled or perceived to have been handled by both partners involved. In my case, my ex-wife unloaded the bomb and withdrew behind her wall. Nothing got in or out, emotional speaking. She would have no discussion with me no matter how rational and calm I attempted to proceed. I was belittled, screamed at, blamed for everything, accused of everything, and then just ignored. I felt responsible for her emotional distress to the max. I felt that a righteous man would try to help his wife and his family all he could. She took it as interference with her right to live her life anyway she wanted. I was told many times that she did not need or want my help, she did not want to talk to me, and that she just wanted me out of her life. When I was served divorce papers, went to court, and received custody of the kids and the house, she refused to speak to me unless it was to continue her assault on my character. At this point, I did not take it personally. I tried to get her to see reality but she was extremely delusional and in denial of her actions. I still wanted her to stay and work out her problems and ours. She told me she wasted 25 years of her life on me and that I turned the kids against her. They rarely and begrudgingly see her or respond to her phone calls. Her demeanor towards them is of all smiles and "Disneyland Mom" but they see through it and see her as a phony and in a state of denial that anything is wrong with her. They refuse to deal with her in anyway meaningful but will not hurt her feelings. Fast forward to post divorce (14 months ago). In this time, I have not called her once. She has called a few times, nervously (guilty conscious need no accuser?), in which she begins to vent what was wrong with me. No remorse, apologies to our kids, or a tear has been shed by her in this time. Anger has been her only outlet and directed at me. I do not react emotionally or even respond to the ludicrous accusations and untruths thrown at me. She even tried to tell a month or so ago that I threw her out. I never wanted her to leave and wrote letters to her explaining that since she did not want to talk. The positive side of divorce is that I do not have to listen to this anymore. When it begins, I simply say bye and hang up. When she immediately calls back, I explain that I am not going through this again and when I tried to talk to her, for months, she refused. I say bye again. She calls back but this time I am not answering. I do not need any more of these toxic interactions. Since the only minor left refuses to go to her house, there is very little opportunity for interaction. When she comes to his games, we do not speak to one another or acknowledge each other's existence. She nervously watches me but dares not to approach me. I cannot think of a worse outcome after a 25-year intimate relationship which produced three outstanding human beings, my sons. I am not condoning all of my actions but all of this has led me down a path I know I needed to be on. My book tells the whole story in detail. Comments?