Deceased bff also had severe mental illness (I think it was multiple personality disorder or something) and because of that she made up a lot of lies. Those notes weren't from ML, they were written by the bff, but because of her disorder she refused to admit it whenever the MC tried to talk to her about it. He does know it's not MLs fault, he admitted that in one of the previous chapters. ML is also a literal psychopath and doesn't feel or understand emotions until he met MC basically. He doesn't understand the shit he's feeling cause he never got the proper help he needed, his parents just shoved him in a hospital until he left.
Thanks for the additional info.
Now if somebody ask me what's this manhwa all about, I'll have a lot more to tell compare to my understanding (more like outline ) before.
I'm not actually into heavy drama, psychological and other tags that goes along with it.
I'm only here at first because I thought this will be sweet and light story but as I go deeper into the story I know I fvcked up but it is what it is.
And now I'm just here because of the seggs and art.
For the story... For now I don't take it seriously incase it triggers my anxiety I usually just skim the chat bubbles if it's getting dark and heavy.
As long as I know the flow of the story that's all that matters to me.
MC wanted revenge for his deceased BFF who donated her heart to him. ML found out and detains him in his side.. that's it for the flow I'm following.