He fell for Nagi. He knows Nagi loves Hosu much more and so he's going to do everything to make Nagi be happy and live happy. "The things we do for love"
Even though he was a piece of shit, he shouldn’t die. If you’re willing to sacrifice yourself for love, you defined deserve a chance to be happy. Moonbeams
Exactly. He's made mistakes. At least, he realized what's really important. It's going to be sad on his part but that's his only way to atone for the shit he pit Nagi through because he's also a part of him that made his life miserable
He fell for Nagi. He knows Nagi loves Hosu much more and so he's going to do everything to make Nagi be happy and live happy. "The things we do for love"