J.Hunter - " Story of an Hour"

After reading Kate Chopin's " The Story of an Hour," there are many questions that I have. Questions like, What is Louise's deal?, how can she just change from being heartbroken and in tears when the (false) news of her husbands death was told to her, to being filled with joy. Was this a case of a marrige that started off as true love and over the yaers turned out to not be what she truly wanted, but she did'n't want to divorce for some reason. what werethe reactions of her sister and Richards when she came out of the room in joy? it seemed to me that they wern't really shocked.Was her husband's death the only way she could pursue her suddenly recongnized self-assertion? I can kind of see how that could be a possibility since Mr. Mallard was said to be very loving that he could have been very protective and caring for her that she was not able to pursue and do anything on her own, especially with her hearyt problems. How were the sister and the friend informed and so sure enough of Brently's death?Why did Richards try to hide Mrs. Mallard from Mr. Mallared when he entered the house? He had no idea of the accident that he was supposedly killed in and what was going on at home with his wife.
As for an alternate ending to the story, the only thing I would like to happen is for Mrs. Mallard not to die at the end. I want to know Brently's reaction when informed of the situation. How would Mrs. Brently explain herself.