Never even consider giving anyone your address. If he has a whacko ex, then chances are he's whacko, too. If he should contact you again, don't answer him. If you feel you have to meet someone on the Internet, make it a public place during the day and be sure he doesn't follow you. I hear of accounts nearly every week of tragedies from meeting people on the Internet. Of course, they're not all bad but it's too dangerous to take a chance w/your life. God gave you instincts for a reason. Use 'em!