I don't love my brother.

Is it bad that I don't love my brother? My mom says he feels like I don't love him and it's because I don't. I don't know why I should have to love him. I just want him to leave. He's a burden to me, he's 20 and still living at home, he doesn't have a job, he's immature, and I don't want to live with him. He wouldn't stop arguing with me tonight so I threw a calculator and a binder at him and I wish that it hurt him more. If anyone else acted like he did, I shouldn't be forced to love them, and I shouldn't be forced to love my brother either. He's no good.