I have no idea except that I've since an early age have met lots of sociopaths. I'm not saying that I am one, but since it's quite uncommon (at least psychopathy in kids) I see it as more than coincidence.
An interesting gambit but I personally do not find sociopaths attractive, with a rare few exceptions. I prefer those i can easily manipulate to satisfy my needs, not someone who is constantly searching for a method to undermine me. But to answer the question you may like others have stated act weak as well as valuable. Give her something to strive to gain from you. Other then that I do not know, I never really yearned to gain the attention of Sociopaths.