Hannibal Amazing name btw, cant believe i didn't spot it before! Huge crush on Mads 
Please, please, please do not withdraw.
I don't even know you and I'm bloody proud of you!
In the argument he called me a bully for wanting to be his boss, said I was emotionally cold, not a wife, the man in the relationship and mentally unsound if I didn't see that it was too weird! I never call him names but he always resorts to them, then it was oh how he wishes he saw 6 years ago that I'm not a nice person etc and that the only nice things coming out of this relationship was meeting my ds (14) and our dd(3).
Your'e not even going to be his fucking boss and so what if you are? what is he insinuating that your DD could never be management? Or is it only you that needs to be submissive to protect his fragile ego? He doesn't see you as equal, he sees you as a threat and tries to make out you have a MH issue.
Take the job if its offered - then sack the cunt for being a selfish,sexist,abusive prick.
To qualify working for that kind of salary you are obviously a capable, intelligent and qualified professional - don't let him take that away from you.