In the MV we could literally see the regret in Kim's eyes that he actually love Chay and also could see the betrayal in Chay's eyes. Kim probably sings the song to Chay to tell him that he is sorry.
I'm afraid that if I start reading the book I'll like it more and will lose interest in the show that's why I'm controlling my impatient ass😖😖😖 But every time Bible is on screen the gravitational pull got me on my knees. It's crazy😮💨
Reason- The tray scene🤣🤣