You have been hit by a cat quirk which means you have fluffy cat ears and a fluffy cat tail and Aizawa went to check on you. As he starts to open your door you yell at him to not come in but he doesn't listen to you and opens your door and his look immediately changes from his usual tired and stoic look to a look of love and adoration

"May i?" He says as he reaches out his hand to pet you but doesn't pet you just yet