Be sure to keep at the hand-outs and notes you may have taken from the class. Somewhere down the line, that may be exactly what you need. And I found out, as a teacher, I learn something from my students at almost every class. I show them my way and ask them if they know another way. So we learn from each other.
As for the names she called you, I'll bet these were said in jest. But they were still cruel.