Despite once sharing a close bond with her brother-in-law, Middleton has reportedly made it clear to the royal family, including King Charles, that she does not trust Harry and believes that they should not either.
This is likely due to the hurt caused by Harry and Meghan's actions in the past. Middleton is concerned that Harry and Meghan might share private information for financial gain, potentially causing embarrassment for the royal family.
It is said that Middleton had a private conversation with King Charles, expressing her worries about Harry becoming tabloid fodder in the days following his coronation.
Although King Charles has a soft spot for Harry, Middleton is not taking any chances and wants to avoid any potential embarrassment or harm to the royal family.