Call Me by Your Name von André Aciman

During a restless summer on the Italian Riviera, a powerful romance blooms between seventeen-year-old Elio and his father's house guest, Oliver. Unrelenting currents of obsession and fear, fascination and desire threaten to overwhelm the lovers who at first feign indifference to the charge between them. What grows from the depths of their souls is a romance of scarcely six weeks' duration, and an experience that marks them for a lifetime.