Alex Headcanon #001:
Sure, he looks the a sweetheart with a sense of morality, but others should be aware that he pretty much is Hannibal Lector, he’s extremely intelligent, used to manipulate others into what he wanted, can read others like a book, and will not hesitate to chew on your face if you insult him badly enough. Think about it, he can eat people and his stomach is of acidic pH than the normal human's. He can go from infantile to psychopath in a second. He also can shapeshift his jaws into any animals teeth, from snake to canine. "All the better to hold you still and eat you alive, my dearest."