Flipped subtly touched on themes related to personal growth at any age, like how comparison leads to insecurity, wrestling with the realisation that a parent you've idolised isn't a good person, and how parents' opinions shape their children's opinions. 

I appreciate that

Juli and Bryce don't end up together. Instead, there's the implication that they should get to know each other first.

By the end, however, Bryce still has a long way to go in terms of his sexism, fatphobia, and emotional immaturity. Also, when Juli's confused about

Bryce trying to kiss her without her consent

, her mom throws the "just give him a chance" argument at her.