
He knows he's pushing it right? He knows there's no hope but is still saying his sob story.
If you knew you're not enough, BREAK UP
If you wanted to be with her, you should have tried to look for reason why she broke up in the first place. Work on it. Be honest!
He might have sensed she's moving on and saw message on Hyundo's phone, and now he is saying bullshit

In the middle of reading, I thought if it turns out that haru left any type of message or letter that has a hint of approving their relationship I would be so pissed. I am actually glad the story turned out bitter because it is more realistic for someone who wanted to live.
Also, I think it is a fair punishment for tougo, who actually did something wrong by dating someone who he doesn’t even like. Now he has to watch the person he actually loves suffer because of the mess he made. As much as I love tougo and natsumi, I think both tougo and haru should suffer the consequences of their selfishness
Knowing how smart yumin is, I don’t think there would be a miscommunication arc. However I'm anxious