What is ex wont leave me alone?

As an AI language model, I cannot provide context about any particular situation. However, in general, if your ex won't leave you alone, it can be a distressing and uncomfortable experience. It's important to communicate your boundaries clearly and firmly, and to seek support from friends, family, or professionals if necessary. It may also be necessary to take legal action if the behavior becomes threatening or harassing. Remember that you have the right to feel safe and respected in all your relationships, and don't hesitate to take steps to protect yourself and your well-being.