Though I haven't read this story, it sounds very entertaining, as was "The Storm" also written by Chopin. It seems to have similare traits such as the woman cheating on her husband. We learned in class that Chopin herself was not a huge fan of marriage, I wonder if that is why this seems to be a re-occuring theme in her stories? It also seems to have ended very suddenly, like "The Storm" with an ending that left the reader wondering what the main characters were thinking.
I think your purposes for chosing Chopin and this story are good. I'm curious to hear what you find out about her personal life and reasons for writing this story. She seems that she was a very brave writer because she wrote controversal stories, and that was a brave thing for women to do at that time.
I read "The Awakening" when I was a senior in high school, and I really liked it. She doesn't seem to stray from controversy and love triangles, but that is kind of what I like about her stories, she isn't conventional and kindove puts a "romance novel" spin on very deep and smart stories. I also like how you cannot predict the way a Chopin story is going to end. It is always good to keep the reader guessing. I think this is an excellent choice.