Mistress Liza was fed up with the way in which this guy did not understand her. She felt pissed off at him and she had to dominate him which she did as cruelly as he was able to. She made sure that he licked her feet and that he was her human ashtray before she was done with him. He wished that things would be different but they were not.
Mistress Liza is not the kind of person who forgets what people do to her. This guy humiliated her and it was time for her to do the same and to get even. She did this with her smoking girls fetish. She had to make sure that it all worked out the way she wanted it to and that is why she used her cigarette to dominate as well as degrade.