Why did I dream about my teacher stalking me?

I walked into a coffee shop and went up to order my coffee. Then I saw my teacher Ms. Lawler, and said "You work here?". She blushed and walked away from me. When I left I was walking to a band thing. (She is a band teacher) I saw her following me and took a turn away from the building. She followed. I entered the building and found my parents. I was walking around eating grapes and yet she still followed. Then I woke up.