Goddess Harley was disappointed in her paypig and she had to punish him so that he did not do things the way she had warned him not to. She had to teach him never to take anything for granted as well and that is why she chose to read the riot act to him. He was given a last chance and told to behave or he would have himself to blame.
Goddess Harley was pissed at how this guy was rude and she felt that she was best placed to do something about it. She did not hesitate to do it and she dominated the guy financially because she knew it would hurt him if she did so. He tried to ask her to go easy on him but she ignored him and told him that he had to learn his lesson.