Hemingway = Cohn?

" settled in Paris, where he became part of the expatriate circle..."

" Hemingway became not only the voice of the "lost generation" but the preeminent writer of his time."

" Hemingway returned to the United States..."
(About the Author)

After reading the book and About the Author I realized a similarity. I think that Hemingway put himself in this book as the character Robert Cohn. Both people were Americans, moved to Paris, began writing, moved back to the United States for a book, and wanted to travel. They have to be the same person. So does this mean not many people accepted Hemingway? He wrote a bunch of books and was even awarded the Pulitzer Prize in 1953 and the Nobel Prize in Literature in 1954. He must have known what he was doing then. He died by suicide in 1961. If he took his own life, he must have not been living his life all the way up. I could also see Cohn taking his life after he beat up Romero. The reader doesn't know what happens after Cohn leaves, but I think that it would be a quite accurate inference.