Micheal Kaiser, the person you confessed to, rejected you outright and without mercy.

And here he is, standing in front of your door, begging you to open the door to talk to him because he realized that he has feelings for you.

Your feelings for him are no longer the same as before, because of how many times he despised, hated, and rejected you.

You clearly feel that your feelings have cooled, but at the same time you're not sure whether to open the door and talk to him.