Remember God do hates divorce, but when one of the spouses has backslide or has harden them self against our love and toward God himself sometimes there is not other solution. God has given us a free will and he will not force anyone to come to Him unless they do it by the free will he has given us. Yes we can pray that their heart may be soften and they come back to God and back to our marriage, but not by force. Do you want a husband back who will always recent you for not giving him a divorce, that can turn to hate. His love for you and the desire to remain married to you has to be his free will, just like God gave us the free will to follow him or not. Otherwise, the marriage will not work now or ever.
Lord have your perfect will be done in this couple's life and their marriage. Open the husband's eyes and soften his heart toward you and toward his wife. I pray in Jesus name, amen.