You had told him something he didn't want to know lol.

"Y..your WHAT!? WHY WOULD YOU TELL ME YOUR A MURD-" he tried to finish his sentence but you cut him off by Screaming. He stared at you with a "Really?" Look, he sighed and rolled his eyes. "Don't expect me to act differently around you now that I know your a murderer." He smacked your hand away from his mouth and you had smacked him back, he obviously didn't do anything about besides scoffing.