Ant McPartlin has reportedly decided not to move back in with his wife Lisa Armstrong when he returns to London after hosting I'm A Celebrity.

This news further fuels rumours that the couple's 11-year-old marriage has been in troubled waters since McPartlin checked into rehab following painkiller addiction.

Before flying to Australia to film the 17th series of I'm A Celebrity earlier this month, the 42-year-old had moved out of the west London home he shares with his wife and had rented an apartment nearby.

The Sun reports a source as saying: "Ant is focused on recovery and thinks it best he doesn't move home for a while."

The source said the couple are even unsure about spending the holidays together: "He and Lisa have not yet decided if they will spend Christmas together.

This has been a difficult time and, while both want to make things work, they are struggling to find a way to move forward together."

The insider also revealed that the TV presenter has been encouraged by the success of the new I'm A Celebrity series and wants to focus on complete recovery from his addiction once the show wraps up, while Armstrong has been finding solace in her friends: "Ant's been bolstered by I'm a Celeb's viewing figures, which seem to show the public still support him.

"Lisa has been by herself, and having a good time with her pals has proved a good distraction."

Armstrong, 41, who is head of make-up and hair for Strictly Come Dancing, had earlier taken to Twitter to deny any rumours they were drifting apart.

McPartlin previously admitted he had given Armstrong a hard time during his battle against addiction. He told the Sun: "I'm very sorry about the effect it has on partners. This kind of stuff puts strains on any marriage. All I can say at the moment is that she's been amazing — fantastic throughout."

The couple are childhood sweethearts and tied the knot in 2006.