Okay… I've read mangas like this a few times before, and what happened in some of them was that the top just pretended as if he loved the bottom all this time and then ran away and left him so that he could get back at him (the bottom) for leaving him (the top) OR he (the top) cheats on him (the bottom) and is like, "I never liked you, I was just playing with you," etc. to also get back at the bottom. (sorry, english is not my first language)
Yeah you didn’t have to put a spoiler tag since those are only other stories you read and it’s just a theory that it will happen here too lol.
Tbh I just think he’s turned into a yandere, because he stalked him. Usually if they were gonna do revenge, etc. it would be weird for him to find out what kind of milk he likes in his drinks. He didn’t need that info for revenge.
"kind of lewd too"
HUH? KIND OF? KIND OF???