If you have been married to someone for 18 days then there are different rules of marriage compared to someone who has been married for over 12 years and children together. If you have been married that long I think you owe it to your spouse to tell them you are getting a divorce or you want a divorce or I would settle for a contemplating a divorce. Just tell them something. You can't just walk away and not say anything. You can't just leave the house one day acting normal and then later have TMZ report your divorce on their site and that be the first your spouse has learned of it. That is exactly what happened to Pilar Sanders and how she found out about Deion divorcing her. Of course considering she discovered some information about him, she probably kind of knew it was coming, but still. Man up and talk, don't slink.