What should I do?

Ok, so, i told my best friend i liked this guy and she ব্যক্ত he was cute but he'd be a really good boyfriend and that i should go out with him. The পরবর্তি দিন i went over her house with my other friend Lauren. Lauren called the guy and asked him who he liked and he ব্যক্ত Mahnoor (the back-stabber) was one of them. I was mad. REALLY mad. She ব্যক্ত she doesn't lke him and even if she did she would never go out with him. She went out with him the very পরবর্তি day. she lied to me. Then she told me she would break up with him if I wanted her to. I told her to and she ব্যক্ত no. She lied again. Then she ব্যক্ত she really did break up with him and at the football game I asked him out and he ব্যক্ত he was going out with Mahnoor. She lied again. So I got really mad and called her a bitch. The net দিন she came crawling back to me sayin that she was stupid and that she gave him up for me for real this time. Now we're বন্ধু but she always talks about him. It hurts. Im havin doubts that shes a true friend. tell me what u think^^