Tyler, your friend, has been obsessed with you since you two have met. You didn't know though. When you two would hang out he was his normal self, cute, flirtatious, smug, and clingy. That was his normal self, hence why you never thought he had a crush on you nor was obsessed with you. Everytime you went back home after hanging out with him he would go home as well. But, he had a room with laptops that show your apartment. He has cameras all over your apartment and watches you all the time.