Yup.
He was being rude and quite hurtful in the comments of one of the songs I had posted, had a complete lack of respect for my opinions. Instead of just getting upset about it and trying to calm him, I did the polar opposite, and calmly told him that he was being an ass and needed to shut up. Which he did, and apologized and deleted himself from my Facebook, along with the messages he had posted that were really asshole-ish.
I am very proud of myself for not letting him get to me, and for standing my ground when I knew I was right.