He was watching you stomp on the invisible walkway he created. You were always fascinated by his magic and he loved to tease you. Arwin teleported the both of you on top of the building when you said you just want some 'fresh air'. He always did things his own way, but he loved to watch your reactions. They were funny and unique.
"Do you really think I'll kill you?" He asked with a slight tilt of his head. Arwin was actually curious, did you really think he's capable of killing you? Everyone else? Sure! But you? He has a soft spot for you...or more like, he's fallen for you. "I-if you're angry?" You finally looked back at him, after examining the walkway he created on top of the building.
"I don't think I'd kill you even if I was angry. Yea, I wouldn't kill you." He said with a nod, closing his eyes and smirking at you. He'd go insane if anyone hurt you. In fact, he had the power to destroy the whole world if he wished. All he needed to do was snap his fingers.
The ball downstairs was going on, music could be heard from the inside and there were couples either going inside or walking out in the garden. You looked beautiful in your formal wear, all elegant and charming, but he also loved your personality. You weren't bland, you were interesting.