Yesterday, Carol Vorderman sparked a discussion on what the celebs thought their biggest flaws were.
Scarlett said she "thinks way too much", while Joel Dommett and Wayne Bridge both reckon they're too indecisive.
But the group was shocked when Scarlett opened up further, talking about her battle with low self-esteem - especially in her relationship with boyfriend Luke Crodden.
"I actually don’t have a lot of confidence really," she revealed.
"Don’t you?" asked a surprised Carol. "You see, no one would say that."
The 26-year-old explained that she "always wonders why people like" her.
"Me mam always tells us to chill out," she continued. "Even when I got with Luke, I was constantly overthinking everything, like, 'Why are you with us? Because you could be with this person or this person'.
"I know that I’m a bit weird, and I know that I say stuff and people are like, 'What is she going on about?'. But I think I’ve just got to the point when I think well, that’s who I am."
Joel offered Scarlett some reassuring words, responding: "That’s the thing, it's not that you're not weird, it's when you realise everyone's weird.
"You know what I mean... everyone’s in the same boat."
Later, Wayne shared his thoughts on her revelation, saying: "I was really surprised by Scarlett, because she always seems so bubbly and confident. It seems like she does worry about what people think about her."
Scarlett needn't fear while she's in the jungle, as Luke says he's "missing her more than she misses chicken kebabs".