I very much agree with your comment!! I've also reread it so many times haha (I just finished rereading it)
hahaha i think both of them are mature in a way, no stupid logic used as media for their misunderstanding, their anger and emotion feels valid enough for me especially near the end of season 2, i think both Jaehyun and Eunsung are both correct with the way they want their relationship to be, both of them never pointed finger to each other whether they argue to prove which one is correct or wrong, they always find a solution to their problem without bitching who is in the right or wrong, how they solve their conflict usually always with they trying to understand each other intention, hahaah tbh i can't get enough of their romance story, altho some part of me want at least the author shows how they handle the LDR a tiny bit, aside from that i think the pace is already pretty good and the feeling of fulfillment after finishing the story is very rare for me.
if i really want to nitpick something i think sometimes Eunsung jealous too much on anything, altho for me it's always cute hahaha ლ(´ڡ`ლ)
So glad many people also reread this manhwa, it was my first BL manhwa i read and i'm glad that altho i've reread it 3 times it still gave me the same feeling i got back then.
I think what made this manhwa feels very special to me because the drama and the conflict itself is something you might experience irl and the author never make the drama longer than it needs, love how both of them think because it made me feels like i know how it feels to certain extent thus why i never feels frustated when i read it, because some romance genre tends to make me feels how stupid the protagonis was with the stupid misunderstanding.
might re-read this manhwa again in near future because whenever i done reread it, i feel very fulfilled with the story (=・ω・=)