I would not justify my academic achievements or my job description to this person. She is clearly angry and anger comes from fear and insecurity. She is one of those persons who will put down others to make themselves feel better. Obviously she feels threatened. By what or who, who knows and I don't really care yet we seem to be representative of them. She is immature in the way she wants to incite anger to get attention. Just like a child who will do something bad just to get some sort of attention from a negligent parent. She is defensive as in "go ahead and ban(d) me", and then threatening "I'll be back"
I wouldn't want to live in her household.