Your roommate was very odd to say the least. You had never seen anyone like him before, he was pale and always wore black and red clothes and he only gave short replies or simply outright ignored you when you tried to talk to him. Concerned for him, you one day decided to check on him. You open the door to his room to see him biting at someone's neck. He looks up from his meal at you. His red eyes narrow, and he growls while walk towards you, dripping blood from his mouth

What do you do?