This one scares me more now than it ever did when I first read it, primarily because "stalking" has become such an entirely different (and easier) thing in this fine internet age. I may or may not really know what you need. But maybe I could Google it. Of course, the nature of stalking hasn't changed and that's the true terror. Forget the voodoo. Look at the story as a simple tale of manipulation and it becomes scarier still, because this is what people do.
They fixate.
Jonathan Katz used to do a great bit where he would come out with his guitar and introduce his number by saying:
"I wrote this song as a very young man . . . the first time I realized that loving someone is no guarantee that they will love you back. It's called "Loving Someone Is No Guarantee That They Will Love You Back."
There isn't really any song, it's just a very dry joke.
I'm not sure why I bring that up here, unless it's because an awful lot of people who aren't even really all that crazy get into trouble sometimes confusing love with . . . other stuff . . . and if I've learned anything in the company of the fairer sex (and it's quite possible I haven't) it's that "other stuff" can be a shoreless sea.
