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 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.Each of these three relationships have two common characteristics, a commitment to the responsibilities of that particular kind of relationship and a genuine care and concern for the other person in a particular kind of relationship.Friendship and marriage have a third characteristic - affection and attraction, although the nature of the affection and attraction is different.Gen. says, "For this reason a man will leave his father and mother and be united to his wife, and they will become one flesh." This verse tells us that marriage involves the husband and wife severing ties of intimate relationships with parents to cleave to each other.It involves coming together into a permanent bond of unity.
One kind of relationship the Bible describes is friendship.
It also involves the joy of romantic desire/attraction and intimacy and sexual desire/attraction and intimacy.
The Song of Songs, the dialogue between King Solomon and his bride, is a celebration of the romantic and physical love between a husband and wife.
Song of Songs -11 says "How delightful is your love my sister, my bride!
How much more pleasing is your love than wine, and the fragrance of your perfume than any spice." Only in marriage may a man and woman enjoy expressing their romantic and sexual desires toward each other.