Their relationship has often been the subject of curiousity, but Melania Trump has flamed speculation by liking a rather eye-catching tweet.
A writer and pundit based in New York City, Andy Ostroy, wrote this tweet, which mocked the state of Donald Trump's marriage:
For a short time, the First Lady liked the tweet, which of course, sent the Twitterati into a spin with speculation as to what it might mean.
Melania has now unliked the tweet, but that hasn't stopped the frenzy of speculation.
Check out some of the reaction here: