My wife wants divorce but I don't want because I love her

Sir, I have married with a muslim girl after her conversion before Arya Samaj Mandir on 30.06.2011. After our marriage her mother got know about our marriage she forced me to dissolve the marriage but my wife has threaten me she could send me jail if I would think about dissolve. I never try to do this. After 6 months on 9.01.2012 she talked her father about our marriage then her father decided to break all the relations with her and got away her from his house. She came to me and we live happily but suddenly on 20.07.2012 her family remembers her during her staying with me and called her back. She asked me to go her family home for one month only. I denied in toto but she did not care of me and go back. I called her again and again but she did not give positive response. After 8 months in the month of march 2013 she came back to me. And she is playing a game with me from march march2013 she lives with for 10 days in every six months. Now her parents pressurerize and threat her if she would not give divorce me they could suicide. And she decided to give divorce me at any cost. But I don't want. What should I do.