You have mentioned the reasons for her this drastic behavior so that a proper opinion can be given. However, based on your query, it appears that she is no more willing to continue the marital voyage with you and wants to break the marriage bond and live independently.
You cannot hold her for long even if she is found to be taking a decision in haste. She will certainly get out of the house and will realise the loneliness after going out.
However, is she is planing to avenge you by slapping legal actions, if it is DV case, you may face it directly in the court, if it is under section 498a, better to obtain anticipatory bail and and challenge her allegations. You cannot stop her from taking any action against you nor you can predict what she can do and when.