I have to agree with all those before me that advised that you get a restraining order immediately and invest in some kind of defense (like a gun and training). As for telling his wife... I don't think that will do much. If it was me, I don't think my wife would believe you at all. Even if she did believe you, a little assurance from me would probably undo that "damage." One thing's for certain -- I'd be pretty pissed at you for rocking my boat. Don't tell the wife. Do tell the police.