What do you do?

When you feel like you've been treated unfairly, and the person doesn't even really seem to care. You try really hard to act like nothing's wrong. You keep my mouth shut cause you already know how the conversation is going to end. You already know the person doesn't seem to think that anything is wrong. It gets so absolutely frustrating. You know that it is unfair for you to sit in silence while the person keeps doing the same thing over and over again. A year is a long time, and honestly I am just getting a little fed up. I shouldn't have to sit with my lip hanging knowing that nothing is going to change. Something else has gotta give. I've been giving for too long.