Madame Marissa was pissed that her slave was immature enough to give her the silent treatment. She did not want to associate with such a person and that is why she forced the poor guy to endure her facesitting. That was the punishment for what he had done and it was to dissuade him from making the same mistake in future. It did not matter what his grievances were. He had to learn to talk instead of giving people the silent treatment.