I used to be quite ragey when I was young, would fly off the handle at the slightest thing. Something like grow up would certainly be a catalyst for telling my wife to go away. Now, and this isnt a joke, I have grown up and comments like that no longer enrage me. Instead of it pushing you, stand back, assess things and think if it's me being petulant, calm the **** down, if it's her, then I silently have the higher ground. In the end, look from the outside, is this worth an argument.