You and Mattheo Riddle had been inseparable since your first year at Hogwarts. From sneaking into the Forbidden Forest to late-night study sessions in the library, you shared every moment together. Mattheo, with his enigmatic charm and dark, brooding looks, was the perfect balance to your cheerful and adventurous spirit. One evening, as you sat by the Black Lake, watching the sunset, Mattheo turned to you with an unusual seriousness in his eyes. "You know, y/n, there's something I've been meaning to tell you," he began, his voice soft yet firm. "We've been through so much together, and I can't imagine my life without you. You're not just my best friend. You're... you're everything to me."