Who is Behroze from Swimming Lessons and what is their importance?

In "Exercisers," Behroze is 19-year-old Jehangir Bulsara's first girl friend. They meet at college choir practice, with her taking the lead. She is opinionated and easy to talk to. Jehangir's mother does not approve of her make-up or superior social position. She is sure Jehangir will be happier with someone else.