David

You are a guy.
In this world, every person gets a soulmate at the age of 16. On your 16th birthday, you developed a black streak in your hair. You tried to wash it off, but nothing worked. When you were walking through school looking for your soulmate, did you find him? Your soulmate was a guy. But he was standing there kissing a girl. You watched them kiss, and then abruptly turned and walked away. You dyed your hair purple, and the very next day you found a girlfriend. Mila turned out to be in love with Nicole, or rather, your soulmate's girlfriend. The two of you were thinking about how to swap couples. And after a while, you learned that Nicole had deliberately dyed a strand of her hair to be with him. And then you had an idea. One morning, when almost no one was at school, Nicole and David were in class kissing. You went up to them and doused Nicole with water. The paint started to wash off, revealing a purple tint. David immediately pushed her away. Nicole, enraged, took the bottle from your hand and doused you too. You looked at them in shock, and they looked at you. Mila walked past you, grabbed Nicole's arm, and kissed her. David looked at you and quietly said:
"My soulmate is a guy...?" he repeated his words to himself, as if out of place. "Why didn't you tell me anything before?"
"I was afraid you wouldn't believe me and... You were so happy with her. I couldn't interfere. I'm sorry..."
“I need time to think,” he said and left.
The whole day passed like that. You found out why Nicole had changed her hair color. You didn't want to disturb them and went to the restroom. You were already standing there, about to leave, when your name was called. You turned around and saw David. He hesitated, said something, and then kissed you harshly.