Hurley recently returned from a romantic trip to see Warne in Australia where she met his children Brooke, 13, Jackson, 11, and eight-year-old Summer for the first time.
She has told friends that she has a long way to go before his children accept that she is not a "scarlet woman" who stole their father from their mother Simone.
"They're very upset about the fact Shane and their mother split up and struggling with it all.
Children and teenagers tend to see the world in black or white terms. But they acted very maturely and managed to be civil to Liz when they met," mirror.co.uk quoted a friend of Hurley as saying.
"But they were very sombre and Shane noticed they weren't very happy. Liz expected it to be hard - they're not going to like her overnight. But she really has fallen for their dad and wants to make it work."
Rumours were abuzz that Warne is cheating on Hurley with a porn star however, Hurley believes she can curb his philandering ways.
"It sounds like a cliche, but Liz thinks she can tame him.She honestly couldn't be happier. She thinks she's found a guy on the same wave length. She's got a spring in her step now and it's great to see her full of life once more," the friend said.