Nicole Kidman was facing the possibility of having another failed marriage until husband Keith Urban admitted himself into rehabilitation.
The actress, who was married to Tom Cruise for ten years, gave her new husband an ultimatum of going to rehab or losing her.
'She gave him a choice. He could enter a programme or she'd leave him,' a friend said.
'He chose the former. Keith can't stand the thought of life without Nicole.'
The insider added that his relationship with Nicole is 'his motivation to kick this thing for good'.
Urban is currently in a Nashville rehab clinic for alcohol dependency.
According to Life & Style magazine, friends alerted Kidman that the country music star was drinking again while she was filming in Europe.
The star, who is described as 'an emotional wreck', flew back to the US immediately and confronted Urban.
He has previously attended rehab for alcohol and cocaine addiction.
Meanwhile, Kidman's sister Antonia has flown to the US to lend her support.
The close siblings spent Urban's 39th birthday together in Nashville.