Meghan Markle's on-screen husband has a hilarious reaction to her wedding day

• Meghan Markle and Prince Harry will marry on Saturday at England's St. George's Chapel at Windsor Castle.
• Many of Markle's "Suits" co-stars have reportedly been invited – most notably Patrick J. Adams, who played her husband on the show. 
• Adams posted a hilarious photo on Instagram the morning of the royal wedding, in reaction to a photo of his on-screen wife on the front page of a British tabloid. 
• "I'm beginning to think she might not actually be out getting milk," he captioned the photo.
• Here's how you can watch the royal wedding live.

Meghan Markle's love story with Prince Harry may not have much in common with the scripted love story of her on-screen alter-ego Rachel Zane — but that hasn't stopped her fictional husband from poking fun at the future royal. 

Patrick J. Adams, who played "Suits" protagonist and Zane's longstanding love interest, Mike Ross, is perhaps the most notable of her co-stars to secure an invitation to the royal wedding Saturday at England's St. George's Chapel at Windsor Castle. This morning, we were treated to a glimpse of Adams getting (mentally) prepared for the ceremony.

Adams shared a photo on Instagram of his on-screen wife on the front page of a British tabloid — paired with the punchline of a joke that he teed up back in November. Talk about dedication to the art of comedy.

I’m beginning to think she might not actually be out getting milk. #royalwedding

A post shared by Patrick Adams (@halfadams) on May 18, 2018 at 11:45pm PDTMay 18, 2018 at 11:45pm PDT

"I'm beginning to think she might not actually be out getting milk," he captioned the snapshot.

When Markle and Prince Harry officially announced their engagement, Adams tweeted — to the delight of many "Suits" fans, who watched Adams' and Markle's characters get married at the end of season seven — a comical message of congratulations, fully in character.

"She said she was just going out to get some milk..." he wrote.

The one-sided social media banter is all in good fun, but also somewhat heartbreaking for fans of the show. Both Adams and Markle made their final appearances on "Suits" at the end of the seventh season in April. Both have been key players since the show premiered in 2011 and their storied romance has been a viewer favorite.

Luckily, although Markle fans will no longer see her on TV, she and her real-life beau are hardly strangers to the spotlight. We can certainly look forward to plenty of updates from the fairy tale couple. 

More on the royal wedding:

• Meghan Markle has broken her silence on her family drama — and says her dad definitely isn't coming to the wedding
• Commoners invited to Prince Harry and Meghan Markle's wedding are being asked to bring their own food — and people aren't happy about it
• Meghan Markle's dad reportedly staged paparazzi photos and there's a video that basically proves it
• Meet Meghan Markle's half-sister Samantha Grant, who recently lashed out at Meghan for being 'unqualified'
• Meet Meghan Markle's bridesmaids — all of whom are under 10 years old

You can read all of INSIDER's royal wedding coverage here.

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