Alex has been holding onto the biggest secret in The Bachelor mansion.

No one was more surprised than Richie when The Bachelor‘s Megan walked out mid-rose ceremony. Except maybe the producers, who Megan says she didn’t pre-warn before her decision.

But there’s one person who did know about Megan’s shocking plan, and it was one of her biggest competitors.

Speaking to news.com.au, Megan revealed she told single mum Alex about her decision.

“I hadn’t told any of the producers of any of the crew. The only person I did tell was Alex, so Richie had no idea,” she said.

Who’s still in the running for Richie’s heart? Post continues after gallery.

Megan was a firm favourite to win Richie’s heart in the competition, along with Alex, who Megan said was given no option to convince her to stay.

“It was a decision I wanted to make by myself without anyone convincing me. I’d been thinking about it for a little while…I knew that I’d leave,” Megan said.

“I don’t like drama, I don’t like getting yelled at. I was thinking, ‘What am I doing with my life? I’m 27 and I feel like I’m in high school again’.”

Well, one thing is for sure, Alex sure is the best secret keeper in The Bachelor mansion.