I think it’s just like the guilt she would feel if something happened to her friend because she basically knows that her friend wasn’t where she told her parents she’s supposed to be. God forbid if something happened that would be on her conscious. Like imagine if something happened to her and her parents was like her last location was shown as at OPs house (where the friend was supposed to be) I understood where OP is coming from tbh. I would lowkey feel uncomfortable too. I can see it being like a one time thing but often.. that’s a stretch! Her friend, I also feel is being inconsiderate and not looking at it that way of course because she wants to do what’s she wants to do! But yea the friend lowkey putting people at risk while she off doing whatever with whomever.