Writing in Grazia, she cited a source as saying: "It stung, and even today he has not been able to move on from that."
Harry's forces appointments - Captain General of the Royal Marines, Honorary Air Force Commandant of the Royal Air Force Base Honington, and Honorary Commodore-in-Chief of the Royal Naval Commands' Small Ships and Diving - were put on hold after Megxit and he is not currently allowed to take on any roles using them.
The Sussexes' departure from the Royal Family is due to be reviewed after 12 months and it will be the Queen's decision as to what happens to the titles.