It shows that God desires that they enjoy the blessings of the union He created.
Song of Songs 1:2 says “Let him kiss me with the kisses of his mouth, for your love is more delightful than wine.” Husbands and wives are to rejoice in each other’s love both romantically and sexually.
It can involve affection as we work together in Christ, but affection is not a necessary element.
We are commanded in the Scriptures to show love to all believers, but we are not commanded to make all believers our friends.
It also involves the joy of romantic desire/attraction and intimacy and sexual desire/attraction and intimacy.
He or she is making a commitment to have care and concern for the spiritual, emotional, physical, and mental welfare of his or her marriage partner.Of these three relationships, the Scriptures only speak of romantic attraction and desire being expressed in marriage.Song of Songs gives a beautiful picture of the feelings and expression of romantic desire and attraction."Dating" is not a relationship, it is a method people employ in our culture to get to know others of the opposite sex that was not employed in Biblical times.The Bible does not talk about "dating," but it does talk about relationships.
A third relationship God describes in the Bible is marriage.