He is frightened that his life is taking a turn towards somewhere he cannot fully grasp. There were other roads he wanted to walk, other people he wanted to hold in his arms, and dream as they run wild in his imagination. As it seems, life offers no second chances, and the journey we are on, is the only one we get. Changing its trajectory would require an awfully big adventure down the rabbit hole, and while de did it once before, in this moment in time, he feels he is too old for such risks. Life has already shaped him into an individual with responsibilities - people that rely on him for comfort and love, for friendship and companionship, for guidance and a shoulder to cry on. He can't just leave like he did all those years ago. Right? There's no way he could simply buy a ticket towards anywhere and venture onward without saying goodbye. He couldn't do that? Could he?