I dunno, actually I remember a very similar scene in one quite popular VN. The MC, let's call him Fuckface, says goodbye at the station to a girl, let's call her Zoey. She, like Kim, does not see prospects in her current life, wants to change everything and knocks out of the city in search of her luck. And Fuckface understands that he cannot keep her from escaping. Nevertheless, he escorts her to the station, puts her on the train, behaves in a reserved and friendly manner. Although, the difference is that she asks him to leave with her, but everyone understands that this is just an excuse, since she clearly understands that he cannot do it. Then, after her train leaves, she texts him, we see Fuckface on a bench at the station, he responds to her messages quite friendly, even uses a smile emoji. But looking at his face, we understand that he is going into his infamous snowflake mode and is about to burst into tears. And believe me, my Fuckface is anything but a little spineless simp Cuck in this one quite popular VN