Oops! After causing major controversy on last night’s episode of The Bachelor (dumping Richie and walking out of the mansion), Megan Marx has accidently let slip a HUGE secret – Richie is engaged!

The blonde beauty was being interview by the Sydney Morning Herald when she referred to Richie and ‘his fiance’…

Are you wondering which of the remaining girls is the one to win his heart? Well, according to Sam Frost (the first Australian Bachelorette), the answer lies in social media – namely, which girl has suddenly stopped using her Facebook and Instagram accounts.

“It’s safe to assume anyone Bach girl posting on social media or updating their profile doesn’t “win” the Bachelor,” Sam Tweeted earlier in the month.

So, by process of elimination, we’re almost 100% certain that Richie’s engaged to Nikki and here’s the evidence:

Noni recently posted this photo on Facebook and tagged all the Bachelorettes… except one. Nikki!

And, when Nikki was recently interviewed for Access All Areas, she made this blunder, “When I first met him I was in his eyes immediately,” she said. “And that’s something that continues… continued, continued.”