It sounds like she dealt with her trauma in a way that you are unable to understand. No matter what background you come from, there is no reason to judge her so harshly for her having to do what it took for her to survive her pain. What she did in the past, who she was in the past, is not who she is now. It sounds like she is moving on from what has happened to her, and so should you. Put aside your assumptions, your judgments, and your obsessions with her past that she is able to leave behind but you cannot. Love her for who she is now. Go to therapy if you must, find a friend to talk it out, meditate, something! And if you cannot do that, then the answer for this is very clear.