In this short story, I was very confused for the first half. I think I have a general idea now however about what Hemingway was trying to say. Characteristically with Realistic writing, the people in the story share no real connections with anyone else. This is evident through the Macomber's marriage and how they are simply together because they are beautiful and rich. There is no love in their relationship only security. Wilson also is alienated from society which can be seen through the fact that he has many affairs during his safari's but none of them really mean anything. Wilson doesn't even desire any real relationships with women-he simply wants the physical aspect for short periods of time.
Similar to "A Good Man is Hard to Find," there is a realization at the end where the main character has a realization of themselves and the world around them if only for a brief instant. When Mr. Macomber finally conquers his fears and shoots the bulls basically by himself, he discovers what it feels like to be free from fear and insecurity. It is very important to point out though that Mrs. Macomber thinks this realization has come too late. Mr. Macomber doesn't think so, but through the ending it is obvious that his realization did in fact come too late. I think Mrs. Macomber sees this realization taking place in her husband and it frightens her because she sees her entire reality begin to crumble with his realization. I think that is why she shoots her husband-in order to save herself and keep living the life she has always known. I think Hemingway is making the observation that many American "men" stay boys for the greater half of their lifetime through his development of Mr. Macomber. Wilson makes this especially evident when he talks about the idea of "American boy-men" towards the end. I think Hemingway is also showing that it is not socially acceptable to grow up and be your own person through Wilson telling Mr. Macomber, "You're not supposed to mention it... Much more fashionable to say you're scared."
One question I have-What exactly do the game in this story represent? Do they represent women? (Hemingway made some connections between how animals hunt prey and women do as well.) Or do they represent the fears that Mr. Macomber eventually conquers? Or do they represent society as a whole? Did Mr. Macomber in a sense conquer society?