[Babayaro.]

Olivia’s problem is that she doesn’t know how to talk to people without swearing and coming across as aggressive

She is right, Yinrun shouldn’t feel like she needs to constantly apologise but there’s ways of putting your point across, especially towards someone whose first language is not English and therefore may not particularly be able to see past the swearing and raised voice. She doesn’t have very good social skills nor much maturity.