My friend

This is a strange, but true story I wanted to share with you all.
I have a friend the same height as I in a milimeter. However, she's 20lbs lighter. Someone not knowing how much she eats would say she's anorexic. I, however, am on a diet and exercise.
She often doesn't understand new material because she's too afraid to ask the proffesor. I get stuff quite fast and am never shy. Sometimes I'm a bit too cocky.
I draw artpieces, she can't understand perspective.
She often gets F-s and I almost always get A-s.
I hate yellow while it's her fav color.
I usually don't get her when she blethers about new fashion styles. She always carries make-up.
(I have lots of it at home but forget to use it)
She hates mess, while I will never notice it.
She loves cleaning up, I don't understand her.
Her sisters are angels and my lil' sis is a demon.
Fashion is her passion, and I don't give a bit.
1D is her favourite band, and I prefer rock and metal.
Somehow, we're still best friends.