If she has real sociopathic tendencies, even grokking empathy on a purely intellectual level would be very real progress for her. (Perhaps the clearest feasible progress for someone with that condition - sociopaths tend to intuitively assume that everyone they meet is just as selfish and self-serving as they are, which makes them very poor negotiators.)
I'm not sure that she has those tendencies, though. She talks about having flat affect and about her sensation seeking in youth, but plenty of youths engage in mildly antisocial behavior (the brain doesn't fully develop until the mid-20s or so), and many sociopaths don't display flat affect - in fact, they may show rather volatile emotions, including angry jealousy triggered by perceived slights, which she apparently lacks.