If Toffee knows the future because he shares Marco's all memories and experiences, he seems like a very tragic person. He seemed a bit sad when called him boring, might he no longer knows what he was at a childhood, when he was could lived as his true self.You know, probably Star wasn't more than childhood best friend to him. Unlike the Neverzone arc, they were too young / too old, in terms of mental age. Age gap is a concern for me too, but I wish you understand.