I Miss My Best Friend

I thought that my best friend will be there for me when I her friend is mouthing of at me, but really and truly she isn't. I thought my best friend will back me up when her friend is saying hurtful thing about me, but all I know is that I hearing thing that I shouldn't be hearing from my best friend mouth.
????????????????????????????
this isn't call a best friend if they making u feel so upset it could make u ill even though they know it. ????????????????????????????