So, I unfriended him yesterday. He just came after me again, but over messenger, telling me it's "hilarious" that I unfriended him. I have no idea how he knows it was me because of so many friends and facebook does not inform you when someone unfriends you. So I told him he came after me the other day, harassed me, and to leave me alone. Next I blocked him before he could reply again.
Now I am physically shaking from my PTSD.