The Story of An Hour

Personally, I am completely and utterly confused. In the begining, her husband was supposedly dead, then at the end he comes home alive and then she dies. What the heck!?!? I was glad to see her kind of move on from being sad and sitting in the chair by the window.  Then it turns out the whole time she had some kind of heart disease and then she dies.  Well there goes her wish of a long life.  However, since she is now dead, she can be free from everything like she wanted.  I guess from what it sounds like is that she may have died from a heart attack after seeing her husband, Brently, alive.