Kristen Stewart has been sending dozens of love letters and heartfelt text messages to Robert Pattinson in a bid to get him to forgive her for cheating.

The actor's world was blown apart after Kristen confessed to having an affair with her Snow White and the Huntsman director Rupert Sanders and he moved out of the couple's Los Angeles home four weeks ago. But the 22-year-old actress still believes their four-year relationship can be saved and in the notes she has been sending Robert she tells him she "made the biggest mistake of her life" and begs him to take her back.

"She's sent Rob handwritten notes - dozens of them - begging him to take her back. She says things like, 'I can't live without you. I love you. You are the one, and I made the biggest mistake of my life,'" a friend of Robert's said.

Kristen is so desperate to get back together with Robert, 26, she has even offered to go to couples therapy. The pair are still on speaking terms which is giving screen starlet Kristen hope they could save their romance. "Kristen has offered to do everything to win Rob's heart back - she even suggested couples therapy, which is a big change for her. She said they could talk everything out with a third party. She simply won't back down. She text-messages him all day, and Rob just sends one-word answers back," the friend added.