The incident occurred when the royal couple stood on the balcony of Buckingham Palace during the Trooping of the Colour.
Both fans and lip reader experts are saying that Prince Harry told Meghan Markle off earlier this month at the Trooping of the Colour Ceremony as a short video went viral.
In the video, Meghan can be seen turning around twice to speak to Harry, prompting two brief responses.
A lip-reading expert reportedly told The Daily Mail that Harry said: “Yes, that’s right,” the first time the duchess turned to talk to him. When she turned around again, he appeared to say: “Turn around ... look.”
Twitter users commented that Harry looked irritated while Meghan seemed like she was close to tears as she turned around to regain composure.