Search Results: girls getting called sluts

My friend Caitlin, which I call (Kate) is causing problems for me well here is what happened: on Friday I got on the bus and Kate sat by me and she was talking about my friend Madison and she was talking about her weight and I said she is "A little bit bigger then some other girls but she is not fat" (well Madison is not skinny and she is not fat she is just a little chubby as I would put it I don't like to call people fat) And well On Monday I came back to school and I walked into class and Madison wouldn't talk to me at all not one word I tried getting her attention but she wouldn't talk to me, on Tuesday I talked to Hattie she said Madison is mad at me because someone told Madison that I called her fat and Kate was the only one I talked to about that so I automatically assumed it was her then when I get home Madison texted me and we got into a argument and she started calling me a bad friend and that I was a bitch and a little shit and that I shouldn’t call her fat but I did not. (Kate twisted my words around) but Kate is sort of 2 faced she talks about her friends to me and call's them sluts and they are disgusting and etc.. and she ruined my friendship and lied and twisted my words around and she likes to be the center of attention when Madison and I stopped talking Kate became the center of attention and she has done this to me 3 other times, what should I do should I drop her? Is she a bad friend? Is she ruining my life? Please help who is wrong in this situation?