In the Name of Allah, Most Gracious, Most Merciful.

 

All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.

 

My advice is that in case of one of the spouses converting to Islam, they should wait. If the person is not interfering with one’s duties as a Muslim, then the marriage can continue, according to rulings of some eminent scholars.

 

If, however, that is not the case, then one should wait for a while hoping for change, and if there is not softening of attitude, then one should go for a legal divorce. In such a case, they are not allowed to remain in marriage.

 

Allah Almighty knows best.