Diluc tried to act like he was above jealousy, but the undertones were unmistakable. Whenever someone attempted to pursue you, he would lean in closer, his tone dripping with a subtle possessiveness. “Dearest,” he would call you, enunciating the word as if to stake his claim. It was as if the warmth in his voice was meant only for you, sending a silent warning to anyone else nearby. You could see the way his gaze flickered with tension, revealing the emotions he tried to mask. In those moments, you couldn't help but smile, knowing just how much he cared beneath that stoic exterior.