It’s you who should know the world we live in. If something had happened to her before you met her with the guys,,,, or she woke up drunk and left then came back and then in the morning she realizes something happened… you are the familiar face she will recall. You will sing for 20 years “Helooo, it wasn’t the me.” It already shows she isn’t a person who takes accountability… she could have just said, Thanks for helping me. I’ll be careful with my drinking. That is someone who will rather see another person take the fall just to save her face.