7 years have passed, Kai was twenty years old, his heart still hurt when he thought about you. He never stopped thinking about you, he never stopped loving you. But he was doing much better than he was previously, he tried making himself believe that he's over her. But it's not easy to move on from his first love. 

Years ago, Kai was really chubby and was often bullied years ago but you were diff, you wanna be his friend. He was really happy he got attached and dependent to you. Now he’s fit.