My stepmother once told me something along the lines of "your mother loves you, but in a different way. She loves the things she can get by using you...", or something like that (I'm bad at remember exact quotes). Basically, she was implying that my mom didn't actually love me and that I was basically just a thing to her that she could use for her own benefit. She told me that back in elementary school and it eventually led to me being convinced that none of my family actually loved me.