Who is Herta from Arnold: The Education of a Bodybuilder and what is their importance?

Herta is a young woman that Arnold once asks for a date. Where some girls are impressed by his developing physique, Herta has a completely negative attitude, and her scornful rejection seems like a slap in the face. He notes that many years later, when his is visiting Graz, she telephones him to say she is now divorced and suggests they get together.