Living More Human(e)ly?

Does it really matter who one chooses to marry and how one makes a choice as to who to marry, or is it basically true that "you always marry the wrong person"? Was Jane Austen right in her portrayals of couples marrying for "love," for "comfort," or for both? What about arranged marriages? Does "the one" exist? How about soulmates?Will getting involved in casual sex or "hook-up culture" affect one...