The diary of anne frank act ii, what is anne's motivation for spending so much time with peter? plz

In the Diary of Anne Frank Act II, Anne's motivation for spending so much time with Peter because she had found a true companion in him who matched her tastes and interests.  

Explanation:  

In the Diary of Anne Frank, Anne was a young girl living with her family and another family in her father’s office’s Annex to hide from the Nazis under Hitler. Anne was a highly creative writer in her adolescence. Due to her age, her nature and the circumstances she was living in, she was always quarreling with her mother and sister.

Peter was her sister Margot’s boyfriend but the teen-aged Anne began to find an understanding friend in him. He understood her well and their tastes and interests matched well. So she was motivated in spending so much time with Peter.  

sigh language, body language, and voice telepathy