A tiny trope in manhwa/manhua/manga that annoys you?

For me it would be any romance story where the mc or love interest are never depicted hanging out with friends. Like, yes there are definitely people who just don't have friends, but its (in my opinion) not very healthy to have your only important relationship be your partner. Also, if they don't have friends, I feel like it should at least be mentioned or have an impact on the character/their descriptions, instead of just completely omitting any mention or visual cue of a character having relationships outside of the romantic story premise.

Curious as to what irks other people in stories that might have js gone completely over my head.