Alexander's nickname

Yesterday, Alexander insisted that he no longer wanted to be called by his nickname Mausi.
#Sniff#
He is growing up so fast! It will be hard for me not to call him Mausi as he will always be Mausi to me. Yesterday I continously had to correct myself while we played Under Cover with Johnny. I kept saying: "Your turn Mausi, uh, Alexander."

I have wondered before when this day would come. It hurts a little. But I'm glad he is asserting himself and developing his personality.