I know many people are saying things like "run away", "break up", but do consider what silverhawk replied above.

I understand that you are frustrated on certain aspect of her attitude, but do list out the good things about her for yourself too. Yes relationship is about mutual respect, but she might not know if you don't voice it out with her.
You don't need to mention anything about breaking up or so, just tell her that you value her very much, but her certain attitude is making you very uncomfortable. She might be willing to change.