You cry in your room because of your parents' bad behavior, your brother, who gets love from your parents, approaches you and tries to calm you down.

He opened the door to your room slowly and he saw you at the corner of the room crying, he came over to you and sat next to you

"Little Sister, I'm sorry I can't help you, I'm sorry if our parents' behavior is different and i'm gets their love and you don't, even though our parents don't love you, I really love you, don't be sad, okay?"