Really fed up of my marriage

Please help me and suggest me what should i do..... I got married to a divorcee girl on 18 feb 2012 through arya samaj marraige act but after few month we are finding difference in opinion. now it is very difficult for me to live together as she always threaten me she will commit suicide and she also lit up her dress one day and gathered neighbours at home. once after quarrel she have taken 20 pills of citrizine and was hospitalised for one and half days..i called up on100 and informed police regarding the matter but police started blaming and threatening me regarding the consequences if anything happens to her. she start fighting on no such big issues and create scene infront of neighbours and office staff and will use all kind of abusive word for me and my family and provoke me to hit her and after few days she will start saying sorry .she always speak negative about me in my staff but they also understand the situation so they ignore her. Now i really cant take all this any more ....please suggest me what should i do as she can anytime do anything i will be in trouble in way such as police matters and all ............. Again the same situation have arised...as always fighting on mere silly issues , threatening me to commit suicide even she sms "I am going to commit suicide and mukesh will be responsible" . I am really fedup of everyday mess. I have even recorded our conversations in which have abused me and later admitted her mistake. I have talked to her family member also to discuss this matter and her cousin sister admitted that this was the same situation in her previous marriage . I even went to ex inlaws house to enquire and the situation was same as it is today. I am living out of house since last sunday and after 8 day she has called me today. I really donot want live with her now as she always threatened me she will complain to women cell and will get u and family behind the bar. Pls suggest