hmmm if this is a reference to smth im not catching it but. if you mean like maybe they had an argument during trainee years that one side thinks was resolved but the other secretly holds onto... maybe smth abt their attachment styles or habits? oooh idea canon compliant pre the iconic "i like normal~" 2kr jsng might call mnh weird in passing and mnh might. hold onto it because he likes jsng a lot but jsng thinks he's weird :( he must be failing in some way to be likable :( or smth. and then the 2kr happens and jsngs like "but thats what i like abt you" and mnh has to keep his cool but internally hes like "!!! what !!!!" so after filming maybe they get dinner tgt and mnh cant stop thinking abt it and jsng pries it out of him and maybe mnh starts crying and they hug and confess and kiss and