What is a more simple meaning of the quote "my sweet little blue eyed girl?" and why it was used?

"My sweet, little, blue-eyed girl," would be considered a phrase of affection. Without knowing the exact context, I cannot tell yo,u why it was used. Please provide the text in question, or at the very least, please provide a chapter number.

It's a metaphore to show that Connie was entering the adulthood and leaving her innocent childhood behind. She transformed into a new person as eye colour changes from brown to blue.