In King Arthur's Socks: A Comedy in One Act, Vivien says, "Oh, there's lots of things I can do. Cry, for instance." What does she mean by this?

[The living room of a summer cottage in Camelot, Maine. A pretty woman of between twenty-five and thirty-five is sitting in a big chair in the lamplight darning socks. She is Mrs. Arthur B. Robinson--or, to give her her own name,. She is dressed in a light summer frock, and with her feet elevated on a settle there is revealed a glimpse of slender silk-clad ankles. It is a pleasant summer evening, and, one might wonder why so attractive a woman should be sitting at home darning her husband's socks, there being so many other interesting things to do in this world. The girl standing in the doorway, smiling, seems to wonder at it too. The girl's name is Vivien Smith