This mistress was tired of her boyfriend treating her badly. She had given him the space to change and she had warned him that she would not take that sort of behavior. Because he was well built, he took it for granted because he felt that she would not do anything to him. She, however, surprised him by strangling him after she had tied him up. He had let her tie her up because he still felt she could not do anything to him and he could easily untie himself. He was wrong and had to endure the cruel punishment he was given.