Needless to say that if he does stalk you, you should contact the Police. You learned a lesson and you paid a tuition fee. This is the way of the world. But, in this case, I don't think he was lying. I think this is how he perceives reality.
Narcissists suffer from severe cognitive distortions.
No narcissist will admit that he has been rejected. They regard themselves as so wonderful, unique, irresistible - that they block out any information to the contrary. But they also employ positive-enhancing filters. These filter in information congruent and commensurate with the narcissist's distorted and false image of himself AND amplify, enhance, strengthen the information thus accepted. In other words, if the narcissist believes himself to be sexually irresistible, he will ignore and repress any behaviour by others and anything said to him which would contradict this belief.