What do I do with an ex who will NOT leave me alone?

The one thing is to reassure the current boyfriend that he is the only one you care about and that you have little control over what the ex says or does. There could be a legal way to get him to stop, but hopefully it won't come to that. You're right about breaking up making no sense. That won't fix anything. It almost sounds one of those who dumped who things. Maybe he can say he wasn't dumped - but he'd still be without you. Is that really his biggest concern? You might want to find out.

I totally agree with Jonnyboy. I would tell someone in authority about it because there are just too many goofballs in the world. You never know what they may try to do. He's stalking you, and if you let him, he will continue to harass you. Also, as crazy as this world is, you never know if people go nutty and do crazy things, so I would be careful and safe and protect yourself in this whole thing. Also, you can let your boyfriend know that you do not want this ex in your life and that you want and need his help and protection regarding this ex boyfriend of yours. If you ask for his help to keep the ex out of your life, he may get the idea that it is him that you want to be with and not the crazy ex! Good luck and stay safe!