Your friend is fortunate to have such a good friend as you. But there is a limit to what one teen can do for another. What you can do, and in my opinion should do, is talk more specifically to your youth group leaders about what you know. They are in a much better position to approach her parents. They will also know what they can and can’t do legally.
You need to take care that you are not her only support. I understand that you are worried about her. I understand that you don’t want to abandon her. But the fact is you don’t have the skills or the defenses that are needed to navigate being responsible for another person’s life. Talking to the youth leaders will help you as well as her during this difficult time.
Meanwhile — Please encourage your friend to make use of the online and hotline services that are available. One such hotline is Youthspace Canada. Youthspace.ca is an emotional and crisis support line for youth 30 and under across Canada. Chat is one-to-one with a trained volunteer working with the support of staff members. Go to site where you can chat with a Volunteer / SMS Text Chat 778-783-0177. CHAT HOURS: 6 pm – midnight PST.
In addition, there is a “Teens Lounge” here at PsychCentral where teens can offer support and encouragement to each other. Go to “Find Help” on the homepage. Then click on “Forums”.
I wish you both well.