>>58597685She made the unfortunate mistake of having a crush on a character who was insistently being pushed as lasting forever, which means said character is completely unable to meaningfully reciprocate those feelings or even imply that he's thought about that kiss at any point after it happened.
This, thus, builds up derangement syndrome in a sect of shipfaggotry when the only proof the ship can "win" is a statement that's not truly canon, but instead a writer's hopes for what happens with Ash after he becomes Pokemon Master and finally grows up, even though from the anime's point of view, his chemistry with Misty is still extremely alive and interesting even after all of the sanding and neutering he experienced since she left his traveling ensemble.
Thus, further derangement syndrome from ANOTHER sect of shipfaggotry commences, and everyone's unhappy for the rest of time because you have two conflicting ideas and zero confirmation of what actually happens to this shithead now that we're no longer following his journey and are unlikely to ever actually see him again given how obviously relieved everyone involved is to finally be free of this retard and the backlash his adventures have been receiving since XY (which is solely the fault of deceitful dogshit marketing and the joint retardation between the anime's executives and GameFreak requiring them to give Ash a special snowflake "no one's had this in a gorillion years!" form, further amplifying the deceitfulness because that's usually a sign your protagonist is finally about to score their big win).
Add in ragebaiters who don't care about the shipping wars and just keep posting picrel to invalidate everyone because this was one of Ash's final ever interactions with a character in an extremely close context, and the derangement reaches its absolute maximum.