Take a deep breath.
You've told him not to before, I assume?
Harassment, sweetheart. That's harassment. Tell the authorities. There's no reason for this to go on. You've dealt with more than enough. :hug:
I know you're afraid. But the only way you can limit that fear is to opt for a solution, and sitting there in fear isn't going to help you reach said solution. :hug:
Please alert someone in a position to do something about it.