Me and my wife have been married for close to 3 years now. My wife has lost interest in the marriage

Me and my wife have been married for close to 3 years now. My wife has lost interest in the marriage and wants to live alone. She herself says that there is no fault of mine and that she wants divorce just to live alone, and that she doesn't like marriage in the first place, and there is nothing wrong with me. She just says, she did a mistake by marrying. And she realized now that she likes living alone better wherein I have failed in convincing her to stay married. I don't want the divorce as I still like her and want to stay with her and I have no plans of second marriage or anything. What legal options does she have? Can she still go ahead and file for a divorce if I don't want it, and if there is no fault of mine? What legal options do I have in such a case that she files for a divorce?