Kristen Stewart and Rupert Sanders
In the wake of the rumours, Rupert's wife Liberty Ross (who was also in the Snow White movie) retweeted a message from the @WomenOfHistory account, that she later removed.
The message said: 'Sometimes good things fall apart so better things can fall together - Marilyn Monroe.'
We now take a look back at Kristen and Robert's relationship through the years, from those secretive early days to their public displays of affection and their super-cool capers -just how did they become one of the biggest and best A-list couples in the world?
And will their love survive this latest bombshell?