"Chris was telling everyone - apart from Karr - that he was desperate to win Rihanna back," an insider told Look.
"There was one night in the summer when Chris... turned around and said, 'Let's run off somewhere and get married'. Ri just laughed and said if he was going to propose, he had to do it properly - and without a girlfriend."
They continued: "Rihanna knows [a proposal is] going to happen and this time she will say 'yes'.
"She's always thought of as a career girl, but really a big part of Ri just wants to have a family and marry the man of her dreams. And that - for Rihanna - is Chris."