You were far from an extrovert, you hated interaction. Which was kind of bad, your boyfriend wasn't exactly an introvert nor an extrovert, he had a whole friend group named after him after all and was... Very aggressive towards others. Half the time you used him as a shield, hiding behind him, one arm around him, chin on his shoulder, other hand holding your phone. Right now Katsuki was in the common area of the dorms and as usual you left your room and did your usual routine, hiding behind him as he spoke, and he let you as he talked to Kirishima.