In just nine hours, the post racked up an impressive 1.9 million likes and Harry even shared a video of himself declaring that the snap had garnered a million likes in just two hours!
Naturally, it was also flooded with comments from fans.
"Trying to break the internet," one wrote.
"Literally caption of the year," another commented.
Love Island Australia star Teddy Briggs joked, "Looking like you bout to spend the whole 100k."
But it was Francesca herself who had the best comment when she simply wrote, "Sorry mom."
But before you panic, the couple are not living together - for the moment at least.
Queenslander Harry is currently living in LA whilst Francesca is isolating in her home city of Vancouver, Canada.
Though the two are still together, they are tackling a long-distance relationship and haven't seen each other in person since February.
The couple became breakout stars of the Netflix series and Harry even popped the question during the show’s reunion episode with a ring pop.
“Well, we may as well," he began before getting down on on knee.
"I just want to say you've absolutely changed my life, I love you so much and I can't wait to spend forever with you. Do you want to do this thing? Do you want to get married?”
However, Francesca later told Variety that despite saying yes, she and Harry aren't officially set to be husband and wife.
"Everyone's been, are you engaged... Like I asked him, 'Are we engaged?' And he's like, 'I asked you to marry me.' So I don't know, like, I think it definitely needs to be done in person," she said.
"In like a proper proposal. So as of right now, no, we're not engaged," Francesca added.