When I moved into my first home, I found out it was haunted by a poltergeist. I began to notice things moving on their own, much to my annoyance; for example, once when I came back home the refrigerator was left wide open. Do ghosts even know how expensive electricity is nowadays? Maybe not, since they probably died even before the steam engine was invented.
Anyway, I digress. The "occurrences" slowly became more disturbing - moaning in the night, doors slamming shut, the television turning on... to babestation no less. I finally snapped when the words "help me" appeared on the foggy mirror after I had finished my bath. Frustrated at the sight of these words (why should I have to do things for someone other than myself? What good would it be if he was already dead in the first place?), I wrote the words "F*** OFF," in capitals of course to show my annoyance.
The next two weeks were truly horrifying. My car couldn't start in the morning. My house plants began to die. Heated tap water would suddenly turn cold. But the last straw was when Channel 4 decided to run a Twilight marathon for an entire week.
Desperate to stop the perpetual torment I was living in, I sought the advice of my local parish's Catholic priest. He told me: "Margaret, it's best that you just ignore it. Pay it no heed, do not acknowledge its presence, and eventually it will go away." OP, perhaps you should take the same advice Father Michael gave me and apply it to your stalker.