Good and bad

One day on our way back, my conversation with Little J went like the following:

Me: Little J, is Baby Jay good or bad boy in mama (babysitter) house?
Little J: Baby is bad boy.
Me: Why? Why baby is bad boy there?
Little J: Because he cries and cries in mama's house.
Me: Why he cries?
Little J: Of course. Baby wants milk.
Me: How about you? Good or bad girl there?
Little J: I am good girl.
Me: Why?
Little J: Because I don't cry.
Me: So, baby cries and wants milk, he is bad boy. And you don't cry so you good girl, is it?
Little J: Yes!
Me: ?????