Responses
i think its like this :
basically jongchan doesntlike the fact that seunghyun is still thinking abt the past and how he doesnt like how jongchan was dating his crush,, and seunghyun thinks what he said was true but he dislikes how he worded it (and ofc hes upset bcs jongchan was his crush's lover; and how he was the one who picked the gift his crush gave jongchan)

I'm at chapter 18 and let me tell you one thing - I DON'T UNDERSTAND THEIR CONFLICT hahahaha so I'm just trying to breeze through this one. I just want to see them make up even if I don't fully get why they were fighting.