Actually, the novel has a lot more, including how ml really changes for mc becomes a lot more decisive and open for mc and also helps him build his confidence back by reassuring him everyday. I actually hated how insecure ml made mc feel in their relatioship build him slowly building it back made me happy
Though all these were marked as a side story in the novel so I guess the manga has stopped with the main story.
I read the novel and I still hold the same opinion; they shouldn't be together. Even "unintentionally," the ML is very toxic in terms of emotional responsibility, you know? It's so painful, and the MC doesn't deserve this.
I don't want them to be together, the guys should just move on, like sometimes it's just not meant to be, anyway I found it interesting how agonizing this story makes the reader feel but every minute I read I was sure that it would be better for them if they didn't stay together, I definitely won't read the novel so I think this was an ending, right? I didn't like it, but it was still a beautiful story!