Lady Tassia wanted to send a strong message and a strong warning to this loser. She sat down and tried to come up with different things and different ways to dominate him and teach him a lesson. That is why she opted to cruelly trample him. He had to cry and he had to know that she would not tolerate any nonsense from him. That is why she crushed the shit out of him.
Lady Tassia was of the opinion that this guy had to be taught a lesson and she did so in a cruel manner. She cruelly trampled the shit out of him and made him cry and beg her for mercy. He did not realize what she was about to do to him and was shocked when she did. The guy was in pain but could not do much about it.