the reason that yijin was so scared to take his relationship with heedo to the next level in episode 13 was because he was afraid that he would "end up disappointing her one way or another" and when heedo was breaking up with him in episode 16 he said "let's break up, what else can we do when you're clearly so disappointed in me" and every single day i find new reasons to get mad about the 2521 ending because HOW DARE THEY PLAY OFF HIS INSECURITIES LIKE THAT for the sake of "subverting expectations" this will drive me insane they really built these two characters up just to tear them down in the most vicious way possible