Lady Rockabella knows that humiliating losers is hard work and that is why she wanted to eat right before she went ahead to punish him. The mistress enjoyed how the loser was watching her as she ate. He was hungry but she did not give him a bite. She would when she was done with him. For the time being, his anger was part of the punishment she preferred for him.
Lady Rockabella did not like this guy because he was too clingy and she did not like it. She felt like he was suffocating her and yet they had just known each other the other day. So she taught him a lesson by forcing him to lick her sneakers and also trampling him. The mistress also teased and denied him and the humiliation worked as he changed like she wanted.