Major ex-boyfriend problems!?

Just ignore him. Obviously, he is still a kid and couldn't get over the fact that you dumped him. I think he just doesn't know how to react. That is why he is coming up with all this childish acts to piss you off. Boys do that all the time. The next time he does that, just say it straight to his face. GROW UP. So, whatever you do, don't even bother looking him up on FaceBook. He'll start making up rumours again that you are desperate for him. Ignore him. He'll stop when he gets tired. Concentrate on your cles. If he starts swearing at you, just walk away. Don't shout back. It is hard but somebody has to give in. Be the mature person in this situation. It'll be the best option.