It is very difficult, I know, to have an A convince others that we are the ones who are horrid, when, as you say, you tried to help, put up with his abuse etc... But for as long as you remain in contact with him you will be his target.
I am really glad you are okay. That accident sounds horrible and you are lucky to be alive.
Unless there is a reason you must be in contact with him (kids?) I'd go NC (take it day by day if the thought of doing it forever is overwhelming right now) and give yourself a break from him.