Much like everywhere else, Chaeyoung felt out of place. Like she was always on the outside looking in. She was frustrated with this discomfort. She wanted to know what was wrong already, so she could immediately work on fixing it and getting everything back to what it once was. Why couldn't it be that straightforward?

or 

Chaeyoung always finds Jennie staring at her these days, and she wonders if she committed some kind of crime by staring back.