Had a similar experience and told the guy I'd go straight to the police. (I'm out, and his threat was to send my non-PG pics to family and Facebook friends. It wouldn't have been the worst thing in the world since I have no pics that show both my genitals and my face. So I was willing to face him down.) He disappeared. Ever since then, have never given my phone # on a hook up/dating app. Have had more than one guy since try, tho.