Prince Harry and Meghan Markle
Meghan Markle called her husband, Prince Harry, my love and he blushed. Pictured: Prince Harry and Markle meet the cast and crew of 'Hamilton' backstage after the gala performance in support of Sentebale at Victoria Palace Theatre on Aug. 29, 2018 in London. Getty Images/Dan Charity

Meghan Markle accidentally slipped out her endearment for Prince Harry.

On Wednesday, the Duke and Duchess of Sussex stepped out together to watch a special performance of "Hamilton." A short video showed the couple joining the cast and posing with them on stage. Markle stood in front of her husband, and thinking she might have hindered his sight, she turned to Prince Harry and asked: "Can you see, my love?"

The entire cast who just witnessed a peek of Prince Harry and Markle's romantic side erupted in a chorus of "Aaws." Sensing that she just made a royal blunder, the former "Suits" star turned to the photographer and gasped "Oh!" before bursting into laughter.

"Prince Harry suddenly became shy and blushed! so cute Awwwwww!" one fan commented.

A number of royal fans loved what they saw in Prince Harry and Markle. The majority agreed that the couple is very happy with each other. However, one user questioned Markle's timing and accused the new royal of playing games.

"The more I look at this and his reaction and her reaction to the cast’s reaction, I think that was probably the FIRST TIME she ever called him that. And if true, MM is playing a little game and taking her newfound fame out for a spin to see what it can do," Ritzygal wrote.

"Unless there is some rule (and I'm being sarcastic) that Royals shouldn't make public their intimate pet names for each other, her very big reaction to the 'awwws' was kind of odd to me. Like, so what if they heard you? You're talking to your husband. And he looked embarrassed," she added. "And her signature move that she does (i.e. hand to the chest)? OVER IT! Find a new, less fake move, honey!"

In related news, Markle's mini tuxedo dress was criticized because it showed too much skin. A number of critics didn't like it and even joked that the royal forgot her skirt.

"You left home in a hurry, and you forget your skirt, you go in your coat? And the legs. What did You Have seen someone in the royal family dressed like that?" another one added.

However, Markle is not the only royal who wear mini dresses. Kate Middleton was photographed in a similar wardrobe even Queen Elizabeth II wore an above-the-knee length outfit as this was popular in the 60s and 70s.