There is nothing more humiliating and frustrating than when you find out that your partner has been doing something behind your back. Whether it be adultery, to do with finances, or even taking a class, these are things that you would probably want to know about.
And obtaining a marriage license definitely falls under the category of things you wish you knew. Especially if the marriage license isn’t with you! Can you imagine reading the newspaper just to find out that you aren’t going to marry the person you always thought you would?