Here's the thing. She doesn't have anything to prove, but she is going to anyway. That's just her character. She knows she doesn't have to, but she still will just to show you that she can. Doubt her more and she'll prove she can again. We all already know this and you will too.
Cake or pie? I can tell a lot about you by which one you pick. It may seem silly, but cake people and pie people are really different. I know which one I hope you are, but that's not for me to decide. So, what is it? Cake or pie? she'll prove she can again. We all already know this and you will too.