I know what you mean. I've been "stalked" by someone who was in law enforcement.... with noone to run to for help. I learned self defense and later firearm safety.

It's not a good feeling at all to fear. It's a worse feeling when that fear is founded in a bit of truth.

But if this guy messed with you before, what keeps him away? I'd be sleeping with a butcher knife under my pillow, out of fear?

Definitely a therapy issue.