God is love. God showed His love to us, by offering His Son, Jesus Christ, as a sacrifice for our sins. The love between a man and woman is a sacrificial love towards one another.
Love between a husband and wife is a celebration of Christ in their hearts and relationship. A couple shows each other love by reflecting Christ and His love.
When having difficulties in a marriage, a husband and wife first considers where they have been wrong. They encourage each other to repent from their sins. By seeing each others spiritual growth as their responsibility and privilege, they demonstrate love to each other.
A husband and wife show love to each other by building and growing their relationship. They are loyal and faithful to each other. They demonstrate love to each other, by seeing each other’s spiritual growth as their responsibility and privilege.