When people disobey God, they hurt not only themselves, but others. In a marriage, sinful behavior will fracture the relationship. What are we to do when a spouse persists in destructive behavior? In Matthew chapter 18 Jesus teaches three levels of confrontation. Tell the spouse how their behavior is affecting you. Request change.
If they don’t respond, then take someone with you and confront them again. If this does not produce repentance, then share the problem with church leadership. If the church leaders confront your spouse and there is still no turning around, then Jesus said, they are to be treated as an unbeliever, not as a brother. This calls for tough love, tough love is the only kind of love that some people understand.