Have you tried counseling? I think you should find out (if necessay use a detenctive agency) whether she had mental illness even before marriage. This should be possible if she is being treated by the same mental health care facility that was being used by her family before marriage. If she was ill before marriage and you were kept in dark about that I am of the view that you have been cheated and hence will have no obligation what so ever unless you feel committed to her and are prepared to nurse her back to health. The talk of love, togetherness in sickness and in health etc are all fine. But reality of caring for metally ill person is a different ball game and no one has a right to judge you if you decide other wise. However, if she has become sick after marriage, you will have to assume full responsibility whether you like it or not on principle of justice.
