Yeah, if Millie didn't have any access to social media, she'd never know about the WhatsApp shit-talking. Not that that would be a lot better. I am still wondering why she was invited to LW's house, and why she went.

I do think that being able to communicate in privacy with one's friends is a very important part of being friends (all the more during a pandemic, when you have less contact in person, though it sounds as though these kids are back to ordinary school and visiting).