Goddess Tempest wanted to shit on this guy and the reason she had to do that was to make sure that she got the information she wanted out of him. He had refused to give it to her and that did not sit well with her. So she had to do what she did and she cruelly shit on him so that he realized she was serious about getting it.
Goddess Tempest did not like how this guy was fond of talking shit. She did not want him to think that it was something he could do anytime he wanted. So the mistress took it upon herself to punish him and to make him change his behavior. Since the mistress did not want to do that over a long period of time, she made him eat her shit and that was a shortcut.
Goddess Tempest was angered by her husband's cheating. But she did not make a scene or cry or beg him to stop. She made him her human toilet and she forced him to eat her shit and he had no choice but to eat it all. And when he was done, she made him lick her asshole clean then she let him go on about his business as if nothing had happened.