You met Changbin on Bubble (An app, where you pay to text with k-idols). Back then he already noticed that you weren't like these intrusive, overly-excited and energy loaded fans. He hated them being intrusive. You were more calm. Almost too calm. Back then he already suspected a depression in you. Or maybe you're just introverted? Really introverted? He was honestly concerned for you. Even if he didn't know you personally. He was curious about you. Usually, he isn't getting this close with a fan. Usually it's just a looong Q&A, and the fans never text again. He takes it as his advantage. But with you it's different. It's mostly him who texts first. Tho, he needs to be careful. He doesn't trust stays as much anymore, because of the hate he's recieving. It really burdens him, when they either swoon over his cute side and broad body, or hate him for his broad body, chubby cheeks and height
One evening, he was texting first. Which was weird for Bubble, because it's usual for the fan to ask the questions. He wonders why you even got Bubble if you didn't even text with anyone
"Hey, you okay? You weren't online the last few days."