Just a Little Crush

Here's a conversation that I had with my sister, who recently graduated from kindergarten.

Me: So, who's this little boy in your class that Mom keeps telling me about?

Grace: Oh, Johnny. I'm crushin' on him. [Pause.] Do you know what that means Kel?

Me: I'm not sure. Why don't you tell me.

Grace [very matter-of-factly]: It means I love him.