Best friend hates me?

My friends samy and marcela and I are all best friends. we’ve known each other for about a year and we were really close until samy and andres became “lovers” but not boyfriend and girlfriend. me and andres were good friends, and since I hung out a lot with samy, I also hung out with andres too. for some reason, samy got the idea that me and andres were “flirting”. I never did. then marcela told samy that I said that when andres and I flirt, it’s different from everyone else flirting. I mean, how gay is that? I would never say anything like that. whatever. and then, I told her that I never said that but they didn’t believe me. I knew that andres was two faced ass and that he would just hurt samy. after a month, marcela and I became friends again, but it hurts to know that marcela and samy are closer and have inside jokes, etc. samy still hates me and thinks that I steal all of her shit on myspace. I mean I never do that! I try talking to her about the whole situation, but she doesn’t want to talk to me. I want to be friends again but she doesn’t act like she wants to. marcela is stuck in the middle, but she doesn’t do anything to help. and I hate hearing all that shit that samy says about me from marcela. I just want to be friends again.. Please help?