They called him Stone Cold. Once upon a time, I called him my pen pal. When I wrote to Callum Rose five years ago, I never expected a response. He was an up and coming rock star, afterall, and I was just a shy seventeen-year-old. He did write back though, and through hundreds of emails, we became best friends. Until the day we unknowingly broke each other's heart. It's been three years since our last...