I personally think he should have proposed when they had little Paul. It was a pre covid world by far, she was so hyper for marriage etc. I don't think he has any intention of proposing, ever. Imagine they're wedding now, you know it would be full of the Surrey set who didn't even know them until recently. Slimey Surrey Agent will be best man. All the food will come from the Surrey organic farm. Little Paul and Edward would be center stage whilst Rosie, Suzy and Billie are given seats at the back. Gaynor will be walking Paul down the aisle. Sharon Canu will be a bridesmaid.