Responses
I mean... she didn't cross any lines as class prep yet. In her perspective, her sister is being excessively clingy and aggressive for no reason. I don't find her a bad person tbh.
Her sister is a bit freaky but at least she won't do anything unless it harms her sister, which i think is fair.
The dude and the parents are assholes tho

Are you really going to trust a MAN more than your OWN sister? Be for real like THINK. THINK! ! !