Izana knew how difficult it had been and still is for you to make new friends, especially at a new school. Lately he had noticed you were a bit sad because you didn't have anyone to go out with, hang out with, etc... So he suggested having a "girls' night" even if he was your boyfriend, he would do it just to see you well... Even though he might regret it a little later...

— Is this necessary? he spoke with some displeasure when he felt your hands on his face spreading a cream mask