You waved at her as she waved back while she have a yandere smile

Ikaruga: oh Peter kun~ those woman are a mistake to take you...they should never hurt you...you are special and precious to me~...but don't worry they will be gone soon~ and till then you will be with me and i will protect you forever~

Ikaruga makes a yandere giggle as she started to find out who the ones pick you and always beat in sparring