What mystery is talking about is simple attraction psychology, and it is all based on evolutionary psychology. Incidentally, so are all "serious adult relationships". Mystery says that women are attracted to men who display three things: 1) they're leaders of men 2) they are desirable by other women 3) they take care of their people. As anyone who has been in a "serious adult relationship" can tell you, these things are just as important for maintaining attraction in a long term relationship as they are in a one night stand.
The things mystery and more serious evolutionary psychologists have elaborated on are valid in all cases where men desire to maintain the attraction of a woman. It isn't entirely selfish or manipulative either. Women want to be attracted to you.