The last post can be summed up in this:
Do you think your spouse is lucky to be getting you? Are you the great catch? Or do you feel gratitude, lucky, glad that your spouse is somehow willing to marry you.
That the king knew it was a blessing to him to be with the princess is the knowledge of a fool, or one who is made foolish by gladness.
Gratitude is wiser and more powerful, more romantic than any other kind of love.