Marianne, with all her excesses of sensibility, must have been dreaming of the day when she would fall in love. In the midst of this terrible grief for her father, her mother tells her that Elinor and Edward are in love. How wonderful! What a consolation for Marianne, to be able to witness a romance in the making in front of her, instead of on the pages of a book! And then, what a disappointment when it does not live up to her expectations--when she not only cannot see any intense emotions displayed by the lovers, but is not to receive any impetuous and passionate confessions from her sister in private!
That must have been infinitely provoking!