Uh why is she checking YOUR phone? Does she let you look at hers? I would suggest you tell that she needs to ask before she looks. Not that you're hiding anything, but that's purely a lack of respect. She has to respect you.
She has to see that trust is a two-way street. She'll call you names and say you're an @$$ and what do you have to hide, etc. But hold your hand up and say that it is a matter of respect and you would like her to extend to you the same consideration you extend to her.
I think you need to hit her with doses of reality to break up her craziness and selfishness.
It's the same as the sitch with her father. SHE doesn't want to respond even though she knows he worries. Extremely childish and selfish. You don't need to say that she is self-centered, you just need to guide her so that when she does do something positive, she thinks it's her own decision.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.