In the past 24 hours I have been forcefully reminded that when you are working with teenagers they don't actually need another friend. Most of them have plenty of those, of varying degrees of loyalty. What they more often need from the adults in their lives is a parent. A leader. teacher. A mentor.
Sometimes the most loving thing is holding them responsible for their behavior.
Just don't expect them to love you in return for a long, long time. . .