I really think, IMO, at this point, a restraining order will give you some peace of mind. Not just because of the wall "restraining" him from tormenting you...but, because of the principle of the thing.
He, obviously, still feels he can influence your life...or, at least, he wants to believe he can. I agree with AJ...this is all about CONTROL.
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson