The I'm a Celebrity... Get Me Out of Here! cast are filmed 24/7 in their small campsite, so it's difficult to keep secrets.
But it's not impossible, as evicted campmate Alli Simpson discovered while watching back the show.
The model and singer (who is also the sister of The Masked Singer winner and Miley Cyrus' ex, Cody Simpson) entered the show as an intruder and immediately caused a stir amongst her fellow camp mates - although she had no idea about it at the time.
Watch: Alli's brutal eviction from I'm a Celebrity. Post continues below video.
Speaking to Mamamia, Alli said she was shocked to discover that she was in a supposed 'love triangle' with Abbie Chatfield and Ash Williams.
"The only thing that surprised me was the supposed love triangle that I was a part of but had no idea I was a part of," she said.
"That was literally the only thing that really shocked me. I honestly had no idea."
A quick recap: Alli arrived in camp the day after Abbie spent time with Ash overnight. The 38-year-old then told the other men he regretted spending time with Abbie, because he'd rather hit on Alli.
He said Alli arrived "one day too late", with him and a number of the other men in camp discussing what a difficult situation he now found himself in.
Of course, this was all without even knowing if Alli - who is 22 and in a relationship - was interested (she... wasn't).
"I was watching it back laughing so hard at the boys talking about Ash and I in that way," she said.
"I was just sitting there like, 'I was oblivious to this whole situation' so that was really classic."
Alli said she had been nervous to arrive in camp late and it took her a few emotional days to find her groove.
"I was definitely nervous going in because I went in about eight days in [to filming] and I knew there were a couple of groups formed, but everyone made me feel so welcome," she recalled.
"Two days in I had a bit of a meltdown because I was missing my family and friends... [The rest of the cast] remembered how they felt on the third day and they all came up to me and made sure I was okay. It was really amazing, we just became one big family."