What do I do about this girl?

There's this girl that used to be normal and very sweet and nice and we had little fights but we stopped and she always stayed nice and then we started getting close and she said I made her happy and that she loved me and gave kisses and hearts in texts and gave me her number and would be very sweet and say 'i love when you say calloni with 2 hearts' (calloni means I love you). Now since I said something about crying her and her friend keep making fun of how skinny I am and she keeps saying he has his cock but do i have mine and stuff and that when i got mad at her for saying calloni with a heart to another guy after he said it like (calloni x6 ♥) on my wall post for just me and her to be lovey dovey and she even said again that she only says it to me and only me and she kept saying she doesn't know what i'm talking about when i said something about me being upset. My friend made a note and I guess she went and told her friend that she was helping treat me bad before because they start. I'm not sure if I asked if she still caloni (loved me) or if i asked 'calloni ♥?' but then she said 'I will calloni...:(' and he liked it. I think I asked her again right after the 'I will calloni...:(' the same question or whatever again and she said 'I already told you...' but he didn't like it. I asked her something about the kisses with passion and I think calloni and the cuddle talk and probably when she left hearts and why she said i made her happy and she said 'ahahahahahahah! is john .. I gave you kisses Perugia as in the legend .. but now: (' but I could of just asked about the kisses or kisses and love stuff. She I even think said things will not go back to the way they were when I asked for them to. Her friend that caled me a failure of balls and blocks me on every profile she used to say he is a bit** and to not listen to him. Now she won't even accept a request and I can't call her because I don't know how she will react. Before him and stuff: She also said she that she only says 'calloni' to me and only me. I used to just call her cute and do some flirting when we first met and she was very sweet and fun to be around. After some flirting I started to try to get close to her and she liked it and would always laugh or something when I told her how cute she is. After me telling her how I will always be there for her and how I will never let anyone hurt her and that she means allot to me she started with the hearts and kisses. Before she would just kiss me for calling her the most beautiful women that's ever lived' but after I told her how I felt she got real soft and loving towards me. After me telling her how I felt about her I got mad and misunderstood something or I said something hurtful to her and I told her I never meant it and that I feel bad about what I said (I think I said that she doesn't love me or something). After that I asked her for a kiss and she said something about kisses with passion.She left the hearts and kisses before her friend asked if I loved her but then she left them all over the place after her friend asked and I said yes. She started getting lovey dovey after me telling her how i feel about her and then started treating me like she was mine because she started saying sweet things to me and kisses with hearts and stuff. Before in a little fight she said she doesn't feel the same way and that if ig o see her i go see her....we go out but she assures me nothing. She said once that feelings will wait.