Their relationship was left in tatters when she was photographed cheating on him with married film director Rupert Sanders.
But Robert Pattinson and Kristen Stewart have reportedly decided to give their romance another shot.
The Twilight co-stars are said to have had a tearful heart-to-heart, with the 26-year-old actor eventually deciding to forgive his girlfriend for what he considers to be a 'stupid mistake'.
A source told The Sun: 'They pretty much decided they couldn't live without each other.
'Kristen poured her heart out to Robert and told him it was a one-off and a mistake.'
