Madam Mysteria felt that this guy was using her. She sat down and analyzed what he did and how he did it and she came to the conclusion that he was misusing her and he was abusing her generosity and her good nature. That is why she had to fight the guy and do it in a way he would never forget. She wrestled him and choked as well crushed him painfully.
Because this guy was disrespectful, madame Mysteria wanted to show him what happened to people like him. So she used her martial arts training to beat the crap out of him. He worked out but he was no match for her and he was shocked as he had thought it would be the opposite. He was humiliated and he had to beg her for mercy before she let him go.
This guy was a bully and he was used to bullying people and getting his way all the time. But the mistress chose to do it the way she wanted. The mistress used her choke hold as well as other moves to disarm him and to defeat him. He was ashamed that he was being beaten by a girl and he had to beg her for mercy. He agreed to stop bullying and asked her not to tell people that she had beaten him.
Madam Mysteria loves to dominate and today was not any different. She had to teach him a lesson and she did this with her mixed fighting skills. The guy did not expect to experience what she did to him as he did not think she would have such skills or strength. But she did and that is how he was defeated by her. He never pissed her off again after that.