Kicked out of class for my shirt

For context, my professor is usually very lenient about attendance, and all policies. Last week I walked in class 10 minutes late with another girl who was also late, and I was asked to leave class in front of my 100 person lecture, while the girl was not. Fast forward today, I'm dealing with a breakup that happened last night, and the same professor seen I was wearing usc shirt. He said he is a ucla fan and told me to leave class and come back with my shirt inside out. He then proceeded to tell me I'm “ already on his shit list for being late last class, and to leave and come back with a new shirt”. I laughed it off thinking he couldn't be serious, but he was. I got kicked out of class for wearing a shirt. I honestly had no desire to come back with a new shirt like a joke so I just left. I think being humiliated in front of my entire lecture and dealing with this breakup got to me and I just started to cry outside. I really don't feel like coming back that class again.