Hiiiii
Do you happen to know the name of this book?
In the story, Jungkook is the top and Taehyung is the bottom. They first meet when Taehyung joins college — I think they bump into each other near a door, and Taehyung’s phone falls. Jungkook picks it up and sees Taehyung’s wallpaper, which is a picture of him with his brother Jin.
Seeing that triggers something in Jungkook — he remembers some kind of betrayal involving Jin and decides to take revenge by making Taehyung fall for him. But in the end, Jungkook ends up falling even harder for Taehyung.
Later, Jin returns home with his boyfriend Namjoon and doesn’t approve of Jungkook dating his brother. He asks Jungkook to break up with Taehyung. That same day, Taehyung overhears part of a conversation where Jungkook is talking about his revenge plans — but he only hears half of it, and misunderstands everything. Hurt, he breaks up with Jungkook.
Eventually, Taehyung finds out the truth and realizes the lies his brother told him. He regrets the breakup.
I don’t remember much else, but it was honestly one of the best books I’ve read. It got deleted around the same time the "My Husband" book was removed. I can’t remember the author or the exact title, but I think it was called Devil’s Heart or something similar.