Ex-BF of 'Sharpie Brows' here (love the nickname by the way!)
To answer your question she's trying to cosplay a character named "Veronica Sawyer" from a musical called "Heathers"
Pic Related, Is the Character
What she doesn't show in the pictures is that the jacket is like two sizes too small and she's wearing super skinny jeans, that are also two sizes too small. So its even worse in person!