Complex sentence: Accustomed to girls adoring and pursuing him, he has an unusual penchant for girls who act mean and uninterested toward him, so when he meets Noel (disguised as a girl), he immediately becomes infatuated.
Split into simpler sentences: Accustomed to girls adoring and pursuing him, he has an unusual penchant for girls who act mean and uninterested toward him. When he meets Noel (disguised as a girl), he immediately becomes infatuated.