Mistress Enola did not want a slave who was a whiny little bitch. She had to get his behavior under control and that is what the mistress was able to do. The mistress used her feet to torture the guy and get him to cry as the pain got more and more intense. He had to endure all of it as he did not have anywhere to run to and had to accept his fate.
Mistress Enola did not like how her boyfriend had acted in front of her friends and she had to punish him. She used her feet to gag him and she nearly choked him as she did it. He did not realize how pissed she was until she gagged him and humiliated him. It was humiliating but there was nothing he could do about it and he chose to endure the humiliation so that she could forgive him.