I can talk for experience here.. I had met this guy, who seemed great, we were together for about 8 months and all along I caught him on little lies that I kinda just ignored.. but it got to a point where nothing made sense. He turned out to have lied about so many things so I broke it off with him. He was really obssesed with me, to the point where he threatened me. What I did to get rid of him was to scare him, Im a minor and he is 22 so I told him I would call the police. So I suggest that if he gets bad enough where you dont feel safe, tell him you'll get him busted for stalking. Good luck -