I was ordered to be taken out of my favorite teacher's cl?

I wasn't getting along with a guy and his parents came to the school yesterday asking for me to be taken out of his English cl. Can they do that? I don't think they can just waltzed into the school and order me to be removed from the cl. Especially so late in the school year. I'm in high school and I'm sixteen. It seems like most of the suburban moms have nothing better to do that to walk into the school because they don't have jobs and try to criticize another child for something that wasn't even their fault. The guy has been mean to me and I've sent him messages retaliating against him. Now his mom showed the school the messages once I've mentioned to the teacher that he tried to call me. Now I'm taken out of his cl and I no longer get to be in my favorite teacher's cl