The 59-year-old, who previously admitted behaving in a 'prehistoric way' towards women, is said to have had a relationship with a 27-year-old lawyer.
Keys has moved to the Middle East since leaving his job at Sky Sports in disgrace after making sexist remarks. And his wife Julia, a mother of two, had moved into a luxurious villa in Qatar with her husband. But Mrs Keys, who has thyroid cancer, has returned to the UK amid accusations her husband had an affair with Lucie Rose (right), who was believed to have been friends with their daughter Jemma, 31. The 56-year-old is said to have confronted her husband before deciding to file for divorce on the grounds of adultery.
Keys and Miss Rose are understood to have been introduced by a mutual acquaintance on the expat social circuit in the Qatari capital Doha.
Pictures on social media of the lawyer – often in low-cut tops and figure-hugging skirts – suggest she was a regular on the party scene.
Last night sources told the Daily Mail it was ‘particularly cruel’ for Keys to behave like this while his wife was having treatment.
One said: ‘This is the most appalling behaviour.
‘He knew that Julia was very ill but carried on anyway. It has knocked Julia for six and it has had an adverse effect on her health. She is absolutely devastated.’
Lawyers acting for Mrs Keys submitted divorce papers to a British court in August.
They have sent the papers to Keys and Miss Rose.
The presenter is understood to be returning to Britain next week for a showdown with his wife.
But Mrs Keys, who is a psychotherapist, feels her husband has ‘run out of chances’ and wants ‘closure so she can rebuild her life’. A source said: ‘When Richard made those sexist remarks at Sky Sports there was a lot of bad feeling towards him.
‘Despite the outcry, Julia stood by him and made a highly public show of her support for him.
‘She was his rock back then and now when she needs him the most to help her fight her illness, he does this. It is despicable.’