An obsessive delusion that is cured by marriage. Marriage is bliss. Ignorance is bliss. Marriage means commitment. Of course, so does insanity.
Marriage still confers one very special privilege - only a married person can get divorced.
Don't marry a tennis player. For love means nothing to them. No man should marry until he has studied anatomy and dissected at least one woman. All marriages are happy - it's the living together afterward that causes all the problems. The only place where divorce comes before marriage.