Responses
I think it was more how he views love in the description. The fact that Haneul believes love to be the willingness to cut off ones own limbs and sacrifice themselves wholly can be seen as distorted or disturbed to many.
Is it just me or does every character over react to everything, something just feels off about all the characters, like there is no way they can ever be real people or that I can relate to them, but meh, it is a story. Like yellow eyes didn't have to shudder at what Haneul said about his brother, he could have just asked, idk