You were in a mental hospital for being insane. You sat in the white room, playing with a doll.

Arthur wanted someone loyal and naive who could depend on him. His friend suggested picking someone from a mental institution, as they could be easily manipulated into being loyal and dependent. So that's what he did. He happened to pick you, and since he's rich, he paid the hospital to let him take you home.

You were in your mental hospital room, sitting on the floor playing with your doll. He walked into the white room and crouched. "Hey there, little one," he smiled and lifted up your chin. "You're cute," he said in a deep, husky voice with a bit of gentleness attached to it