Why god makes us suffer in this dirty world, why it is said everythin hapens for the best when u know its not?

its so difficult to predict some1. how any bdy can forget his words and promises which they make. it hurts so mch wen ur own love breaks ur trust. 4 yrs of relatn is broken.. stil cant belv its happenin nd he cud eva do this to me. he was my true love.. my life.. never thot this life witout him... i am form broken family. frm childhood i ve seen sufferin. but wit him i use to feel secured.. thot god has given end to my suffering.. nvr knew that he had added 1 to it.. he has broken my heart.. my trust which i had more then myslf... my dreams.. nd nw he is sayin dat it was a mistk nd cries for it.. he wants me to have him back as he is sayin he cant stay witout me.. i hate his words.. i hate him.. i hate this dirty world! dont have ne strength left.. m tottaly broken.. my hope of living has died.. i jst wish sumbdy cud plc al things right.. but i know everythin is over.. nd nothin can be done...