Doingmybest gave a fantastic post, as did Miss Laura. The key here is letting her know that you're there for her, and that you're not going anywhere, and that you're here no matter what if she needs you. The key is getting her to believe that...I'm 19, and I remember well that little phase of "I'm 16, thus I'm right" fairly well. The trick is making her truly believe that you're there...that doesn't mean she doubts that fact or has reason to think you wouldn't be...it's just a factor of the age.

Please know you're both in my prayers, and I wish you all the best.

Hugs,
Harley