The actress and film director hit the headlines last year when news of their affair went public. Sander's wife Liberty Ross has since filed for divorce and while Stewart and Robert Pattinson (Edward Cullen) seemed to be back on track briefly, they have also now called time on their romance.
The Twilight stars' relationship ended last month and K-Stew is reportedly struggling to cope - especially now R-Patz is currently Down Under to work on his new movie The Rover."Kristen was feeling low - the lowest she's ever felt - when Rob flew to Australia. She doesn't have a huge circle of friends. Rob was the closest person to her. So, when he left, she reached out to Rupert to see if he was OK and suggested meeting for a coffee," an insider told Heat magazine.
"It seemed like Kristen was just blindly trying to do something to ease her pain. When Rob found out she'd contacted Rupert through a mutual friend, he was upset that Kristen would even go there. He wasn't jealous, he was just incredulous. It seems like Kristen has no chance with him now."
Sanders was also said to be shocked by K-Stew's actions, and decided not to meet up with her.It's not thought that the 22-year-old was looking to reignite her romance with the 42-year-old film director, but was simply looking for someone to discuss her ongoing problems with.
"Kristen feels helpless without Rob. The fact he has upped and left her has devastated her. She had thought she might be able to go to Australia for visits and keep their relationship going, but Rob found it difficult to trust her again and knew long distance would be too difficult.
"Things had become irreparable. Kristen knew things were over between Rupert and Liberty too and it seemed like she just wanted to talk to someone who was going through the same thing as her," the source added.