why are people fake?

so i decided that i can't trust anyone. i have a friend who sometimes ditches me to be with her worthless boyfriend who's like two years younger then her. and i confronted her about it and called me the fake person which is fucking bullshit all i did was tell her how i felt about the situation and i get shit on. now she turning some of my other friends against me. so i have one thing to say since she doesn't have one of these things and i can say what ever the fuck i want but that one thing is STOP BEING A FUCKING WHORE AND GET A FUCKING LIFE YOU PIECE OF WORTHLESS SHIT >:[