We learn about the life of Anne Frank based on her diary. Because of this, most of the information we have comes from Anne's perspective. From her point of view, Peter is a quiet boy who appears to be lazy and uninterested in most things. She believes he does not want to study, and they do not initially understand each other. This will change as time goes by.
Later on in the play, we learn that Anne and Peter become closer, and that the two share many thoughts and secrets. This affects other people in the attic. Margot accepts their relationship, even if it makes her feel lonely. Mrs. Frank shows concern for Anne, while Mrs. Van Daan becomes suspicious about the way in which the two interact with each other.
