The way I perceive her is as an immature young woman that still thinks shes a Jedi while giving in to her passionate side and blaming others for it.
I do manipulate her, by chosing conversation options I do not necessarily beleive in to get her approval up and turn her slowly to me. I know shes not a Jedi but I would never tell her that to her face, I try to blurr her perception between the Light and Dark to make the Dark side appear perfectly rational. To the extent I am a loyal servant of the Empire and am not pointlessly destructive, she tends to agree with me.
Seriously, whats better than a loyal apprentice that still tries to please me instead of a sith that will try to eventually murder me...
I think shes just fine the way she is.