What's she mean by "lilly-white?"

Rebecca

"Lily-white" means pure or ideally white. It's often used to describe people or ideas that are completely pure, free of contamination or corruption. This is the meaning intended by the phrase "sugar-coated, lily-white version of twenty-something life." Ex: Her mind is pure and lily-white. Ex: Society wants you to conform to their ideals, to be lily-white.