Do you get along with your mom?

I don't have a great relationship with my mom, never have had one. I'm the middle child and I have an older sister, and a younger sister. All my life she's favored the both of them, and has not hid the fact from anyone that she does so. She goes out of her way to see my other sisters, calls them daily, see's them every week, and so on. When it comes to me, I couldn't tell you the last time I saw my mom let alone talked to her. We live in the same town, but never see each other unless I go out of my way to go see her, and even when I do all she talks about is my sisters, their kids, or she's on the phone or computer the whole time I'm there and doesn't hardly say anything. My older sister lives 3 hrs away and she goes to see her all the time, my younger sister lives an hr away and goes to see her aswell, I live 4 miles from her and never see her unless I go there. Would you just give up all hope of having the same kind of relationship with her as she does with your siblings? Would you be fed up and refuse to go over there? I'm really sick of this and she doesn't realize how this affects me and my children. What can I possibly do in this situation? I love her dearly, but she acts like she doesn't give a hoot about me and my kids. Do I just stop hoping for a real relationship with her and not go out of my way to see her anymore? What can I possibly do?