Why does my mom prefer my sister over me? Even if she always make my mom cry because of the things she did. Last year, my sister got involved in a scandal, Paris Hilton kind, but, seems like everyone just forgot about it. My mom still prefer my sister over me. She listens to her more and sides on her opinions. I do whatever my mom told me to to please her and make her love me more, but, nothing. I don't think she recognizes me. Seems like eveything I do is nothing to her. She clearly loves my sister more even though she doesn't want to admit it. But, it's so obvious that other relatives notices it too