There she is chagrined by the crude and reckless husband-hunting of two of her sisters, Penelope and Margaret. One particular focus for them is Tom Musgrave, who had paid attention to all of the sisters in the past. This Emma learns from her more responsible and kindly eldest sister Elizabeth.
Emma is dismayed by the way her sisters, Penelope and Margaret, are pursuing husbands recklessly, particularly their focus on Tom Musgrave, a man they've previously shown interest in.  She learns about this from her older sister, Elizabeth, who is more sensible and kind.