Prologue

Cassie cherished every stolen glance, every shared laugh with Leo. Her heart, once a quiet melody, now played a frantic symphony whenever he was near. Sleep was a stranger, replaced by dreams filled with his messy brown hair and the crinkles around his eyes when he smiled. She collected his favorite snacks, memorized his train schedule, and found herself rearranging her life, piece by piece, to fit around his. This wasn't love, it was an obsession, a beautiful, terrifying, all-consuming madness that threatened to drown her in its intensity.