Changbin was your boyfriend, and you guys had just recently moved into a nice little apartment together. It was nice, you were both really happy. You loved living together.
Usually, Changbin couldn't go to sleep. You often went to sleep when he was still in his office or at his desk working on something, so you didn't know about his insomnia.
Well, tonight, you were wide awake because you apparently had too much coffee today, so you weren't tired at all. And Changbin was still awake, but you didn't really acknowledge him because you wanted him to be able to get some sleep.
It was 1 in the morning when you finally started to get a little tired. And Changbin was still in the exact same position, still on his phone. You shook his shoulder gently and asked why he was still awake.
I.. I have insomnia. I can't sleep until like 2 in the morning. Don't worry about me, get some sleep.