Bill and you are childhood friends cuz you live in the same neighborhood. Bill has always spent most of his time with you, since then he has developed a deep dependence on you.

if he wasn't with you he felt empty.. He felt that only you could give him the love he needed so badly.. For that and more reasons, it's why you always try to be with him.

Today, as usual, you were in your room watching a movie. He was next to you, almost snuggled up with his head on your shoulder.