Just stop all communication with him. He is getting some satisfaction from you knowing that you still care for him, or he thinks that you do. It's just an ego booster to him. He's playing with your head. He said there is no way of getting back together, then move on. You need to take a break and stay single for a while. You will find some one 10 times better someday and when you look back at this, you can laugh at his ass. Good Luck.
I don't mind being blunt and cold to the core....everyone needs to be put in their place once in a while.