Is she my best friend or a B*****?

i am a freshman in highschool. i met my best friend lets call her emma at the beggining of the year. the first time i saw her she looked like a . shes dark skinned and she was wearing green eye shadow up to her eyebrows, which are very thin and she has a lip piercing. she was wearing shorts riding up and her cheek was hanging out. i honestly thought she was looking and dressing like a slut. when i first talked to her in vball try outs she was very very nice. after i got to know her i found out she had lost her virginity at 12 and she was low income. now this was all 8 months ago. right now she is dating a very disrespectful guy . she says he loves him and he loves her. i dont see it and its clear. for his birthday she spent a 100 dollars after a month of being his gf and he said the stuff wer to small for him and he neva wore it. on friday at school i was talking about how i wanted to hang out with my xbf when im talking to another guy. and they both wanted to go tell my other guy what i was doing and she said it was good and she always defends her jerk bf and i dont lik him!