I can't stand my friend

I hate her, I loathe her so badly. I've known her for about four years and i'm shying away from her. She's rude to me near her friends. (She recently got a japanese foreign exchange brat) and because of that, I refuse to visit, because of the way she treats me. (And the Japanese friend is way too immature for me.) My friend is severely whiny, I occasionally take her out to dinner, and pay for her way to almost everything, she doesn't say thanks, and complains to me if I want to stay longer to watch something. She's also a severe anime addict, which has made me hate anime..Is this normal? And this is always how she looks