Quote from : Welcome to Shadowhunter Academy Book

I am here to determine my relationship." Simon goggled. She couldn't be talking about him. Could she? "Do you see that man?" Isabelle asked, pointing at Simon. Apparently she was talking about him. "That's Simon Lewis, and he is my boyfriend. So if any of you think about trying to hurt him because he's a mundie or--may the Angel have mercy on your soul--pursuing him romantically, I will come after you, I will hunt you down and I will crush you to powder.