What will you do if your friend/sob betrayed/break your trust?

Its happened to me, and im liar if its never happened to me. Yes, my friend betrayed me and indeed she must be lost her mind and i dont care what happen to that girl. I must have bad feeling everytime she is around me... All i feel, the good things becoming bias for her bad attitude. I dont know this person anymore, she must be doing something to gain again her friends include me... And i dont think that i will trust this person anymore. It must be a very difficult decision, or even to think that someone you trust, you even lend her money, key of your car, and everything but at the end of the time, she must lost her mind to think about herself only... And its not a good ending. Never put your trust to anyone that you think they will be true to you. Who knows this person will stab you at the back. If you have a feeling towards someone, better not to share your feeling to this person, she/he may also have the same feeling to your crush/girlfriend/boyfriend. I did have a personal experience like this and at the end, i only regret that my friend is an evil... I never believe anyone 100%, even 70%. Most of my friends only get 50%, i dont know if they will hurt me. But i promise, i have never any idea in my mind that i will hurt anyone. I never look for enemy, but i dont think i can accept anyone to be my true friends.

I think i will break my friendship with him or her, who is incapable of being my friend. However, i haven't had such a bad friend. Good luck! Happy posting!