Katie Price and ex-boyfriend Kris Boyson have sparked rumours they are back together following their split last month.
The former glamour model and weight loss specialist Kris broke up at the beginning of September and she was then pictured getting cosy with another man on holiday in Majorca.
The insider told the publication: "Kris stayed by her side the whole time and even sat waiting in the police station all night. He kept hold of her belongings for her and arranged to give her a lift home too.
"He’s been a real rock to her, even when she dumped him and started dating Alex [Adderson]."
The source claims Kris would "jump at the chance" to be back with Katie, 40, and he's been texting her to see if she's doing OK following her arrest earlier this week.
However, a rep for Katie insisted to The Sun that Katie is "not back together with Kris".
ED! has contacted representatives for Katie for further comment.
It comes after Katie was arrested in the early hours of Wednesday morning on suspicion of drink-driving after her pink Range Rover was found with signs of damage while stopped on a street in South East London.
Now he’s saying that the only way she can make a full recovery is by having him full-time back in her life.
It was claimed Katie had earlier attended Kris' birthday party.
According to The Sun, Metropolitan Police confirmed on Wednesday afternoon that Katie was released under investigation shortly after Kris was pictured at Plumstead Station in South London.
A Met Police spokesman had previously said: "At approximately 2am British Transport Police officers came across a car showing signs of damage stationary at the roadside in Shooters Hill Road, Woolwich.
"A 40-year-old woman who was inside the car was arrested on suspicion of drink driving. She was taken to a south London police station where she remains."
Katie is currently seeking treatment in rehab for post-traumatic stress disorder.
She sought help after a difficult year that included mum Amy being diagnosed with a terminal lung condition, her marriage to third husband Kieran breaking down, and a romance with boyfriend Kris ending.