biggest pet peeves in historical manhwas?

Just some things that you don't like when reading a historical manhwa/Ga/hua

I'm gonna start :
In manhwas where the Mc reincarnated as the villainess/ an extra (anything, but the FL of the novel), I really hate it when they say shit like "he can't like me" "he's meant to be with the FL". I get where they're coming from, but it's lowkey disrespectful to the ML. He likes her and all (he confessed, show her how much he appreciates her etc) and she just invalidate his emotions "because it's not meant to be". Unless that's the setting of the story (like she can't change her fate), I find that so annoying.