I like George Benard Shaw's definition of marraige: "when two people are under the influence of the most violent, most insane, most delusive, and most transient of passions. They are required to swear that they will remain in that excited, abnormal, and exhausting condition continuously until death do them part."
Oh, but Mr. Shaw, I think it is far more likely to last a lifetime if the relationship stays for a while in the friendship category first, then to deepen into the true, enduring and loving phase necessary for two people to remain happily together forever after. (A little frenzied passion now and then doesn't hurt).
Would you agree, FAM?