It's a very safe assumption that we are not the center of other people's world. That what they do has very little to do with us.

Even if he was mad at you yelling at him was not the right response, he is your supervisor. If you asked him if he was mad and he said no then accept that, you can not know what other people are thinking or feeling and you don't have to know. . You can say in a natural voice that you feel he is angry. But if the person denied it then there's nothing you can do but accept that they are having a bad day and stay out of their way.