I agree he is bonded to you. You say the bird is ok with others when you are not in the picture, this is common behaviour when a bird is very bonded.The way to deal with this is not to have others handle the bird when you are holding him. Let others give the bird treats and interact with him in other ways, feeding playing, teaching new words, talking to him, cleaning the cage.Beware if the bird is allowed on your shoulder,you could get a nasty bite if others approach you. Place the bird down when others are close,husband,children. The idea of this is so the agressive behaviour does not become a habbit,why risk a bite when you know its coming.My grey was a bit agressive when being put in the cage, I got round this by teaching him to go in the cage on command by himself.Its a similar thing, avoid the situation that causes a flair up.