Why does my brother hate me?

He abuses me verbally (very bad) and physically (not as bad, he will push me and pick me up and throw me) But I don't know why. He Calls me gayrod (I am not gay) and emo (which I am not) and other names. I'm pretty sure he hates me. I'm 11 (I share this account with my friend who is 14) and he expects me to do everything. Please just help me.