You need to know your job discription. And she needs to know she can't bully you and that you have boundaries. When you engage her otherwise and bring things up to her, all she is encouraged to do is blow you off. You already know she is not interested in hearing your POV right? Well, then just set boundaries with her and that is it, don't feed into her BS.

You are a pleasant respectful person, she is not so you can be pleasant and set boundaries where if she treats you badly you ignore her. She seems like the kind of person who learned to get her way by drama and bullying. Don't allow her to engage in that behavior with you, stay professional.