Divorce

It's been 2 years 8 months that I got a married a girl... We got married in temple without the concer of girl parents. Actually girl forced me to get marriage even though I tried to call her parents they didn't pick my call at the time of marriage. We were happy first three months later I got to know that she had very private time(before marriage) with many boys through her cellphone gallery but I accepted her I was leading life happily. And my mother was very supportive she was giving preference to her and my mother used work all the household work. My wife not interested in work so I never forced her to work. We were happy family. But from past 3 months she fought for everything she scolds my mother and me and nowdays she is not respecting anyone she started going to her parents house without informing us. Most of the times we searched her in entire city later we got to know she went her mom's house. Last time also she did same thing without informing us she went to her mom's place so I called her father to inform about it. he had threatened me so me and my mother went to their place to get her back to our home at that time my wife and her brother attacked on us... Now she is not coming to our home and she will not give divorce it seems.. so I don't know what should I do now? and if I give divorce should I give alimony? We don't have kids Please suggest me what should I do to come out of this problem?