Ex boyfriend harrasshing me about our relationship

I am 28yrs old lady. I got married at the age of 23rd n got divorse with mutual understanding within one year. After that i met one of my college met he knows about past status and was ready to accept me his lifepartner. But there was one problem that his elder sister to get marry 1st then he will marry with me. By the time i have introduce him with my family and we had sexual relationship he forced me emotionaly to do all this. In that situation i have been concieve too i told him to please inform his parents about our relationship and get married soon but every now and then he gave me excuse and have done abortion too secretly like 4yrs have been past. I strictly told him to leave me. I want to breakup relation. As well as when his parents come to know about my past they were not accepting me and rejected by giving bad words. So i told him to leave me. So that i can go ahead in my life. But at present he is trying to meet my parents, friends and workplace everywhere coming telling about our relationship and trying me too stop and doing harrasing in public place n doing suicide things in public place n insult me. I have already done FIR on him but again he is doing within a month. Please help me out from situation