Goddess Channel wanted this guy to know how to foot crush. He was under a lot of stress and he had to find something easy and inexpensive to occupy his mind. That is why she chose to use her foot crush fetish to help him. The mistress taught him how to crush and what to crush to pass time and to take her mind off any stressors he may have had.
When mistress Melissa broke up with her boyfriend, she did not want anything to do with him. And when she noticed that she still had the teddy bear he had gifted her some time back, she did not want anything to remind her of him and so she crushed it with her bare feet and deformed it before she threw it in the trash. Now she did not have anything she could trace back to him.