She beat Corrie's Andy Whyment into second place after a gruelling three weeks in the jungle.
The actress, 27, broke down in tears as she stormed to victory, before sharing a passionate kiss and cuddle with cheating husband Dan Osborne, 28.
There were tears galore as Andy, 38, and Jacqueline told Ant and Dec how much the show meant to them after learning they were in the final two.
Jac grew emotional as she told how she no longer wanted to be seen as a "doormat", with reports of cheating plaguing her husband Dan.
She said: "It was not what I expected.
"It was a lot harder. I didn't think it would be such a turning point in life, I went in as one person, I feel like I have come out as a different person. I've grown in confidence and found who I am as a person."
She added: "I think it's so easy to care so much what other people think of you, trolls, people who say nasty things for the sake of it and I try to change their opinion.
"Here you have no choice, you have to be you. Here I have different people bigging me up of different ages, I can't really work out what is happening.
"I've always been known as Lauren from EastEnders, or a doormat, or whatever you want to call it, and coming here I have actually proved myself."