Yep, it seems the actress has ditched technology in favour of some old fashioned pen and paper to try and convince Rob that he's the only one for her - and has even suggested couples therapy.
oo and err.
A pal of Rob's told Life & Style Weekly magazine: "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.' "
Apaz, the fact that she's still on speaking terms with Rob - i.e. he's not completely blanking her anymore - has given the actress hope that they may still be able to salvage their relationship - despite her bonky times with Snow White and the Huntsman director Rupert Sanders.
Rob's friend added: "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."
We can't help but feel a little sorry for Kstew - Rob is looking buffer than ever after all.
And hey, perhaps her determination will pay off - 'faint heart never won a fair lady' and all that jazz. Yes, we did just refer to Rob as a 'fair lady'. Sorry.
What do you think about Kristen's love-letter writing?