I have been shattered , Abused, Raped and Cheated by my Boyfriend

I know this guy for the last 12 yrs and been in a serious relationship with him for the last 8 yrs. We had decided to get married right in the 1st year of of relationship. He told me that he will start talking to his family as he will settle down financially and i waited 8 long yrs for the same. in the mean while i met met most of his family and he use to come to my home regularly and new everyone in my family. He made physical relationship with me on the promise of marriage and we use to go on holidays with friends and alone as well. all the friends also knew his intentions of getting married to me, as he always promised the same. In the mean while i tried every possible means to settle him down as he was not really well educated. whenever i asked him to talk about our marriage to his and my family he threatened me to commit suicide and wanted me to wait for the right time. All this time for 8 yrs he kept on abusing me mentally, emotionally and physically and financially on the promise of marriage. Now all of a sudden he got engaged to another girl. I am broken to the core, I and i can not take this betrayal. Please help me, What should i do ? Please suggest a way out ...