How sexual rivalry, fist fights and other shenanigans drove Ernest Hemingway

A photo of Ernest Hemingway sitting with a mischievous-looking group in Pamplona inspired Leslie M. M. Blume’s new book, “Everybody Behaves Badly.” It was 1925, a year before Hemingway’s “The Sun Also Rises,” hit. The group was a volatile mix, complete with fights and sexual rivalries that inspired his writing, Blume tells Jeffrey Brown, in the last of our series on summer reading suggestions.