I was going to just going to go to bed and not say anything but I can't. Are you getting counseling on how to help Nicole?
What she is going through is not "just situational" she has been through a traumatic experience that has transformed the way she sees the world, how she feels and thinks about her body, her self worth and since it went on for two years it has probably affected the way her brain works. Is Nicole your daughter? Do you know who molested her? Have measures been taken to make sure this person never gets near her or another child?
Was it a friend or family member? This person needs to be exposed. Not by Nicole, she's been through enough but you need face this person and make sure they get at the very least a hurting they will remember like that little girl will remember for the rest of her life.