As a person with NPD (narcissistic personality disorder), I believe Charlie is a communal narcissist.
Communal narcissists are narcissists who wish to do charitable acts in an attempt to be praised, liked, and of course to be right.
And it makes sense. Her father is literally the sin of pride. Having NPD is laid out for her genetically.
Looking at her pattern of behavior, a few things I've noticed are:
1- She puts her own ideas first and foremost and dismisses everyone else's thoughts and feelings (especially Vaggies). She thinks she knows best in every scenario and can't take no for an answer until it blows up in her face.
2- She continuously makes apologies but never changes her behavior, her apologies ring very hollow.
3- She makes people feel like they can't be mad at her because she doesn't mean to hurt them.
4- She pushes people way too far to reach her goals by guilt tripping and peer pressuring.
5- She will jeopardize everyone else for the sake of proving herself right. She's so obsessed with being right that she is destroying her relationships.
She wants her dad to approve. She wants her mom to approve. She wants hell to approve. She wants ANYONE to approve of her. And she doesn't realize that she's pushing everyone away. I think this will lead to a massive falling out and confrontation of her pattern of behavior.
This has always been clear to me, but becomes even clearer in the latest episodes (S2, EP 3 & 4.) Her obsession with being right and doing something good has led her to:
-Make Pentious's survival more about her hotel working than the fact that he's alive. (Her response was "I told you so!" and not "I'm so glad he's alive!")
-Put Angel in a scenario where hes faced with his abusers.
-Risk killing or severely injuring Angel and Husk.
Does this mean she is evil and intentionally cruel? No. Narcissism isn't an "evil disorder", it's just a disorder that results in some pretty poor behavior and lack of understanding for people sometimes.
Does this mean she doesn't love her friends? Also no, she clearly does. She just struggles majorly with empathy.