Mothers and daughters

My mother and I have a complicated relationship. Not so much on her part, she loves me fiercely, but on mine. I love her, but she drives me crazy! I know ladies whose moms are their best friends, and I have always wondered how much of that is nurture and how much nature. Is their friendship based mainly on the fact that they're related, or would they have clicked if they had met out in the world somewhere?  Do they just happen to have complementary personalities? Or are they just really good at communicating and developing the relationship that they have, regardless of whether or not they would like each other outside of the realm of family?

My mother was a single mom, and her whole life was my sister and I. She didn't do much outside of work, didn't have many friends, didn't really do anything for fun. I felt that I was her only source of happiness, and I resented it.  I moved out of the house as soon as I could, and since then our relationship has been strained.
It's gotten better the last couple of years, but I don't think we will ever be overly close. On top of our history, we have very different personalities as well, so we were never destined to be best friends.

Now that I have a daughter, I'm hoping we will have a closer relationship than my mom and I. E is not quite two, so right now I'm her very best friend. (Though if I'm being honest, our dog Max is right up there too!). At this point all I can do is tell her I love her, build the strongest foundation I can, and hope that someday when she's grown she'll still think I'm as amazing as she does now.