Frédéric Beigbeder's *Love Lasts Three Years* is a sharp, witty, and deeply cynical novel that explores the lifespan of romantic passion. The protagonist, Marc Marronnier, a literary critic, firmly believes that love, despite its initial fervor, inevitably fades after three years. His theory is put to the test when his own marriage collapses, only for him to unexpectedly fall in love again, forcing him to confront his own philosophy. Beigbeder masterfully blends humor with profound observations on modern relationships, infatuation, disillusionment, and the human need for connection, making this a thought-provoking and entertaining read.