For those of you who can't remember how the Twilight co-stars broke up - or if you've wiped the ugly memory entirely - here's a small yet concise recap.
Robert, who portrayed Edward Cullen, met Kristen, who played Bella Swan, on the set of cult classic movie Twilight in 2008.
Robert and Kristen went on to date for four years and even shared a home in Los Angeles until photos surfaced of Kristen hooking up with her Snow White and the Huntsman director Rupert Sanders - who was also married at the time.
It wasn't pretty for anyone involved, but despite Sanders' wife leaving his cheating ass, Robert and Kristen seemed to end on a cordial note.
In an even nicer gesture of friendship, Kristen told Variety that her ex had "the perfect cheekbones" to play Bruce Wayne.
If only we could all have relationships with our ex like this!