Second only to the love of God, there is no love more great than the love between a husband and wife. As a married man myself, my wife is the greatest love of my life and my best friend in the world.
As the great Saint John Chrysostom says:
The love of husband and wife is the force that welds society together. Men will take up arms and even sacrifice their lives for the sake of this love. St. Paul would not speak so earnestly about this subject without serious reason; why else would he say, “Wives, be subject to your husbands, as to the Lord?” Because when harmony prevails, the children are raised well, the household is kept in order, and neighbors, friends, and relatives praise the result. Great benefits, both of families and states, are thus produced. When it is otherwise, however, everything is thrown into confusion and turned upside-down.
+ St. John Chrysostom, Homily 20, Homilies on Ephesians
To those who wish to be married, as well as for those who are already married, I highly recommend the below book by Saint John Chrysostom. It is truly a priceless treasure.
On Marriage and Family Life
Inspired by the epistles to the Corinthians and Ephesians, he discusses the reasons God instituted marriage: primarily to promote holiness of the husband and wife, and only secondarily to produce children. Chrysostom goes on to discuss sexual relations, the mutual responsibilities of marriage, and parenting.