I Was Mean to My Classmate

Yesterday in class, I made fun of Mia for her drawing. It wasn't even that bad, but I was just being a jerk. We're supposed to be friends, and now she's probably never going to talk to me again. Ugh, I feel so stupid. Why did I have to open my mouth? Now everyone looks at us differently during art time. What if she tells the teacher on me? I really didn't mean for it to hurt her feelings like that.