Josephine is informing her sister who has a heart condition of the death of Mrs. Mallard's husband. "It was her sister Josephine who told her [the news of her husband's death]
Mrs. Mallard is rejoicing over the loss of her husband as she realizes how neglectful he was towards her feelings. "And she opened and spread her arms out to [the years to come] in welcome"
Josephine is worried about Mrs. Mallard and how she is taking the news so she went to go check on her but she tells her to go away. ""Louise, open the door! I beg; open the door--you will make yourself ill. What are you doing, Louise? For heaven's sake open the door."
Josephine and her sister go downstairs and in the doorway it's Brently Mallard, her husband. So hurt over this news, Mrs. Mallard's heart disease took control, killing her, and the people believe that it was because she was overjoyed. "He had far from the scene of the accident, and did not even know there had been one."