known each other since June 1937.
Lived together in the Secret Annex along with family and friends.
Had falling in love with each other later life.
Peter was sixteen, and Anne was thirteen at the time they had met.
Peter had died at age 19 and Anne at age 15.
On 13 July 1942, the Franks were joined by the van Pels family: Hermann, Auguste, and 16-year-old Peter, and then in November by Fritz Pfeffer, a dentist and friend of the family. Frank wrote of her pleasure at having new people to talk to, but tensions quickly developed within the group forced to live in such confined conditions. After sharing her room with Pfeffer, she found him to be insufferable and resented his intrusion, and she clashed with Auguste van Pels, whom she regarded as foolish. She regarded Hermann van Pels and Fritz Pfeffer as selfish, particularly in regard to the amount of food they consumed. Some time later, after first dismissing the shy and awkward Peter van Pels, she recognised a kinship with him and the two entered a romance. She received her first kiss from him, but her infatuation with him began to wane as she questioned whether her feelings for him were genuine, or resulted from their shared confinement. Anne Frank formed a close bond with each of the helpers, and Otto Frank later recalled that she had anticipated their daily visits with impatient enthusiasm. He observed that Anne's closest friendship was with Bep Voskuijl, "the young typist the two of them often stood whispering in the corner.