Crossing the line

I love that Alby enjoys books.  I love that he enjoys Asian food (though scoffing 5 prawn crackers in 10 minutes may suggest his love could do with coming down a gear or two). I am unsure about his love of apples.

It was fine when he would suck compulsively on a ring of dried apple.  It was fine when he would gum a carefully cut up piece of apple.  It was even fine when he completely ignored the pieces of carefully chopped up apple (more for me).  But now he has crossed the line.  Stealing an apple out of my hand to crawl away with it and actually eat it is completely unacceptable. 

I will share my Philadelphia, I will share my prawn fried rice, I will even share my strawberries but apples are for mama.

Now can somebody please explain that to Alby?