
The 31-year-old mother-of-four has instructed lawyers to begin legal proceedings as she prepares to fight for half of the Manchester City defender’s £27million fortune.
The documents were served to Walker ten days ago, and MailOnline understands Walker had moved back into the family home – but not into Kilner’s bed.
The 34-year-old footballer, who earns an estimated £175,000 a week, was said to have been sleeping separately from Kilner in a room on the third floor.
The couple separated last December after Walker was revealed to have fathered a second child with model Lauryn Goodman, who texted Kilner to say: It read: ‘Hey it’s Lauryn. I just wanted to quickly tell you that Kyle is the father of our daughter.’
As their tumultuous relationship hit a new low, a source told MailOnline: ‘Things are as bad between them as they have ever been. It wasn’t like a normal marriage.
‘They have barely been speaking to each other. She is divorcing Kyle because she just can’t forgive him for what he’s done to her. She can’t get over it. She has tried.
‘Kyle seems to have accepted it’s over. He’s been happier in the last week or so. Like the weight of the world’s been lifted from his shoulders.’
It comes after Walker was praised by a judge in July for being ‘sensible, honest and reliable’ during a family court battle with Goodman over child maintenance payments.