>>Stop talking about him, thinking about him, anything having to do with him.<<
Yes, and coming here and insulting her repeatedly on a message board in front of all of Percival is the best way to do encourage her to do that, certainly.
The problem with people like what Sasiah is being described as is that they want people to be obsessed with them, and give them attention. If it can't be positive, then they'll take negative, too -- so long as they're getting something.
Thus, by feeding into her drama and letting her get your goat, you are allowing her to win, Daigen. Essentially, you're a puppet to her machinations.
Honest to god... ignore her. Completely, and utterly. Ask any friends that you might have in common to simply tell her the least amount about you as possible if she asks, and to intentionally make it sound bland.
Eventually she will get bored, and turn her attention elsewhere. So long as you make it "fun" for her to antagonize you, though... you will remain her target.
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What a frightening thing the human is, a mass of gauges and dials and registers,
and we can read only a few and those perhaps not accurately. - John Steinbeck