I would get a legal restraining order forbidding him to contact you directly or to call or to be in your presence. Really. If it costs too much to have him contact your attorney, you could also put in there that he cannot contact your attorney except for bona fide legal matters.
Yes, I understand it would only be effective in one country, but it might shock him out of this rotten behavior.
Btw, he's WAAAYYYY past MLC. This is mental illness or substance abuse at this point.
