The Sunreports that Walker has returned to the family home on a "trial basis" following a series of in-depth conversations over the summer.
"It reached a stage where they had to make a decision on their relationship," a source said, according to the newspaper.
"It was unfair on everyone to drag it out any longer. They either had to make a go of it or move on. They’ve decided to see how things go. It’s on a trial basis. Kyle’s been back for over a week now and he’s sleeping in a separate bed on the third floor of the house. Annie is determined to do what she thinks is best for her kids.”
While another source added: "This year has been the toughest of their lives. There is still a huge amount of upset. It will be a work in progress for many years. But if they are to stand a chance, they both need to give it a go.”