"You're making a fool of yourself and a fool of me"
There are many great love stories in literature - among my favourites are The Wind in The Willows, The Great Gatsby, Burmese Days, and The Idiot. However, perhaps the most troubling, doomed (and realistic?) evocation of unrequited love that I have enjoyed is Maughm's Of Human Bondage. It was also a great film in the 1930s.