That's the point. It was necessary for Lee Seodan to understand that this will come up again. While he has made it very clear about what happened and what he feels about him at the moment, unless Lee Seodan himself overcome his insecurities on his own they will keep having the same conversation when new issue rises. In the novel chapters ahead, same thing happened, he was bothered by his insecurities the only difference is, Lee Seodan spoken out about it FOR HIMSELF. Seriously I can't explain this if you're unable to see why he needs to say this.
I can't stress enough the story isn't about some cliche relationship where characters are acting fluffy, romantic, gentle etc.
I’m glad the story has depth for you, it does to me too, by “should never be that deep” in my comment i was referring to going back and forth abt our different opinions.
you mentioned abt ‘can’t stress enough that’s its not abt some cliche relationship’ under my comment which makes it seems like you directing that towards me that why i said “i never said it was abt some cliche relationship” and i rlly don’t think anything abt this gives cliche.
i still think what the top said wasn’t necessary, but thank you for ur insight.
so sorry for the long paragraph i just wanted to clear everything up .

“if you’re hoping that i fell for you at first sight, that’s not the case” that was so unecesary, what the bottom said had no correlation to that