The apostle doesn't specifically deal with how we navigate the every-day difficulties in this kind of marriage, nor does he encourage “missionary dating.” He does, however, speak to the ministry potential in unequally yoked situations.
That the unbelieving husband “is made holy” does not say that he enjoys salvation vicariously through the believing wife, but rather that proximity to his wife's Christ-centered living creates opportunities for godly influence.
Scripture provides clear instruction to those married to unbelievers.
While she is devout, he can be found somewhere on the continuum between tranquil unbelief and agitated intolerance.
His emergency situation helped remind me that for my ministry to him to be effective, my love for the truth of God's Word needs to be deliberately coupled with a gentle spirit and ongoing, intentional expressions of love and compassion.
Over the years, it's been easy to blame his behaviors and addictions for any of my growing callousness in the relationship—a mindset to which any person in an unequally yoked marriage can fall prey.
Believing this truth does not detract from her spiritual maturity, nor does it lessen the need for a husband and wife to communicate and learn together what is best for the well-being of their family.
Some argue that in these situations where the husband is present yet essentially absent, functional egalitarianism results.