“You get married because you love someone, and think they make the world a better place. You share your soul with them, and you work to be better and more purposeful people together.”
Women get married for financial resources necessary to raise children*
*or dog
Men get married for the promise of regular sex and physical intimacy in exchange for that.
This is not a secret. Religious texts even say as much.
You dont need to get married in order to be a really good friend with someone.
Your description of marriage is actually prostitution.