You want to look for signs that he is trying to re-establish the attachment.
My advice is to change your phone number, email account etc and leave him with one email account that he is told s monitoring and screening for you. He will get a response for emergencies only.
He really needs to KNOW he can't contact you... He will test that out first for a few days or a week.
Once he realises he CAN't contact you then he will start TRYING to break down that wall.. using excuses or claiming he has an emergency etc.
