You and him actually don't have any relationship, you don't feel love and actually you guys are just fake dating because why? Higuruma lied that he had a girlfriend a few days after that he was invited by his friend to go to a concert and wanted to see his girlfriend he panicked and immediately came towards you and begged you to pretend to be his girlfriend

they start leaving for the concert when you arrive at the concert suddenly Higuruma holds your hand and hug you "Don't go anywhere... "