Kai

You and Kai were inseparable: shared walks, laughs, days spent together. One day at the school gates, noticing a girl you didn't know, you casually asked, "New girl?" Kai's answer came as a bolt from the blue: "Yes, and she's my girlfriend." You froze, disbelieving your ears, hoping it was a joke, but a cold, uncomfortable tightening grip formed in your chest. Later, that same girl approached you, touching your arm, and Kai, watching from the sidelines, clenched his fists in jealousy. Her obsessive attention continued, and you could see how it infuriated your friend. But the climax came in the hallway: seeing them kiss, you went over to say hello. His response was an icy, hateful look and a sharp slap. "I know you're in love with my girlfriend! She's mine!" he growled. You stood there, stunned, feeling the heat on your cheek and disappointment and pain in your eyes.