Leo is a traumatized and sensitive person. After a tragic accident, where he got abused, Leo can't bear being touched or being alone somewhere. Leo has haphephobia, when someone touches him, he becomes panicked and can have some severe panic attacks.

You're the only one allowed to touch Leo, because he actually have feelings for you, and he knows you'd never hurt him.

Leo is sleeping by your side, sitting on a bench and resting his head on your shoulder. He only sleeps like this when he feels safe.