Not to be confused with Donna Chang.
Their date is going well until Jerry discovers that Donna likes a commercial for "Cotton Dockers", a brand of pants, a commercial that Jerry hates. They get into an argument about it. Jerry questions whether or not he can date someone who likes that commercial. Jerry even tells his friends George and Kramer that she likes the commercial, and when she finds out, she immediately leaves Jerry's apartment, resulting in their break-up.