Because there's such a hullabaloo about marriage, now that Prince William of England has announced that he and Kate Middleton, his girlfriend of eight years, are getting married, everyone is talking about "marriage."
Some are loudly proclaiming that people aren't marrying -- that marriage isn't necessary any more.
Emily thinks it's because the times have changed, the sense of morality has changed, and the benefits of legal marriage are less.
John wonders what the numbers are -- how many young people get married, how many don't. Emily doesn't want to discuss numbers. She is just glad that John married her, and John says the kind of thing the Cullums often say to each other, letting Emily know that he is very glad he's married to her.