How does Sybil insult Amanda?

Amanda tells Sybil that she is too young and inexperienced to hold onto an opinion for long when Sibyl expresses concern about Elyot. In response, Sybil says that if experience and age makes her like Amanda, she never wants to change. Even worse, when Amanda proclaims that heaven should save her from the nice women of the world, Sibyl retorts that Amanda's reputation ought to take care of that. Finally fed up, Amanda tells Sibyl to go to hell.