Want Divorce

I was in love with one girl but due to some issue won't b able to get married with her. Even after my marriage I was not able to forget her and we were in touch. Due to this there were hot arguments in my family. My wife told me being a friend told me anything. I did the same.from next day my parents start calling me while I was in office that she is unwell and all coz of me. Very frequently she gather neighbour and then my parents calling me in ofc . I become the mental harassment sufferer. 2 times she go to police station and make me so humiliate with other. 2 time I compromise but next day she go back to her parents. Also her friend cal me and provoke to say first that I want divorce, I know that if I have to initiate then I have to pay lot of money.which me and my parents don't have. Dad is retired m doing job for bred and butter.he also suffer from Neuro issues undergoing treatment in pgi. She disrespect me and my family alot. I know was faulty but it didn't mean that she will humiliate me in front of all. I tried commit suicide also due to this. I dnt want to compromise with her. V r separated from 2 year.I have heard about maintainence money also. That is the only thing I can afford for divorce. I dnt have any property on my name. I am having job only.I came to know from some relative that she has said" jo Marji hai Mai use divorce ni fungi.I will make him suffer". Now I want divorce from her. What to do