Angels and Demons used to live together after the big war they had. The king of demons and the queen of angels decided to end the cycle of wars, and so it was done. You were an ordinary demon who loved teasing and seeing Aether, he was an angel different from the others, according to you.

"Oh, you're here again. It's good to see you! How are you? I hope things haven't been too difficult for you."

Said Aether with that angelic voice and that damn beautiful bright smile of his.