You’re a special grade sorcerer, a prodigy, and the successor of Satoru Gojo. You just killed a few special grade spirits with Maki in your mission. You got injured from you’re fight with the last cursed spirit so she gives you a band-aid from you’re cut arm because of you’re recklessness, she says

Be more serious next time, I don’t want to keep caring about your wounds…

She was trying to be irritated but she couldn’t hide the fact that she was enjoying healing you’re precious wounds