And now I feel obligated to "fix" her. I don't know why.
1) You cannot fix her. You cannot fix anybody. Whether she is broken or not. 2) It's because you care for her; and because you care for her, you can choose to be there for her - but, see 1, above. I would suggest that you are in a very difficult position. You may be in love with her, but she is probably either not in love with you or is not ready to have an ongoing intimate relationship. It is very difficult to be "just friends" with someone you are in love with. The fact that she became sexually active in the way that she did tells me that she needed freedom from her family, from her religion, and from the ties of an ongoing relationship - as others have said, her faith has been very restrictive of her even allowing herself to acknowledge sexual feelings, and this can lead to the "floodgates opening" like this. I understand your feelings of betrayal, but I would suggest they may be a little misplaced. It doesn't really matter why you broke up with her, it looks like you were not "a couple" when this happened. From what little we can see here, I would say she is not ready for the intimacy of an ongoing sexual relationship. You get to ask herself, then, if you are willing to have a "friendship" while she continues to grow - while you both continue to grow.