It's not up to her what you talk to her about or whether you bottle up these feelings. It's up to you and only you. It's up to her what she does with it, but the first thing you owe yourself is to forget about hiding this anger and confusion. Tell her about it.
But be prepared for her to seem like she doesn't care. That might really mean that she doesn't care, but it might also mean that she doesn't really get it. That seems so impossible, I know, and it should be, but now that I've seen it happen I have to believe it.
