Kramer wants a jacket belonging to his mother's ex-boyfriend, as it supposedly has an attractive power over women.
Eager to see his girlfriend's one flaw corrected but afraid of appearing shallow, George first ascertains that Audrey was not offended by Kramer's suggestion and then delicately persuades her to get the nose job.
George is so nauseated by her disfigured nose that he cannot look at her, and tries to lead her into taking a vacation by herself in the interim between surgeries.
Jerry is conflicted about his relationship with an actress named Isabel, whom he finds sexually attractive, but dumb and irritating.
When she has him do a practice reading with her, delivering a scenery-chewing performance, Jerry decides he can endure no more and breaks up with her.