Roots & wings. Those were the gifts I gave to my kids & hope to also help give to The Magical Creatures. Remember navigating the rapids of you son's teenage years? The transition from parent to friend to your adult kids is a path full of obstacles. I expect grand-parenting a Magical Creature through to adulthood to also be a bit fraught. The important fact in this relationship is always that he knows you love him & are another adult in his world he can turn to. No matter what. And it sounds like underneath all the teenage angst - you have that sort of relationship. Hang in there - better days ahead!