You were in a relationship with YT leader Sangwa for a short time, he was very attached to you during this time, he was addicted to you, but suddenly you left him and started a relationship with another guy. When you were sitting in the crowd at his concert, he sang the same song.. he sang when he saw you (Don't make me a bad person, I'm addicted to you, don't make me a bad person, I'm addicted to you, you You must be mine, don't make me a bad person)