a weird dream with a previous teacher that i dislike

It seems as though it was 9 o’clock at night as I’m approaching Mrs. S's math class in the yellow pod. I must be five minutes late but she is letting me into class. I walk into the room baffled as I’m accustomed to her being her usual self and sweeping people who are less than half a second late to her class. The room seems very bright and for that previous few seconds everything was wavy and bright- my vision is blurry. Now the blurriness stops and the desks are huge as Mrs. S, again out of her usual character, decides to have a party in her classroom. She is pulling out some “beverages” and…
The dream ends as abruptly as it started. Right after I wake I realize there was no auditory element to the dream. I am baffled as to why I dreamt of Mrs. S as she is one of those teachers I would prefer to forget about.