True Friendship?

What is friendship? Ive been asking myself this for weeks....I dont think I've had a true friendship since I was a little kid. But everyone now is truely obsesssed with being a bitch, a liar and a backstabber. Even I do it. But I had a friend and we were so close; But we grew up and then *snap* she abandoned me and became a bitch who played with my mind. Where do kids my age get this from? TV? Films? Even, society??? xxx