Emilia Fox has split from Marco Pierre White.
The 'Silent Witness' actress had only been dating the TV chef since the beginning of last month but it is believed she called time on the fledgling romance in the last week after losing interest in their relationship.
A source told the Daily Mirror newspaper: ''They're still friends, but there isn't any romance anymore.''
In August, the couple seemed completely in love when Emilia, 38, and Marco, 50, were spotted at Carluccio's restaurant in Chiswick, west London.
An onlooker said that they were acting like ''a pair of 18-year-olds'', kissing and stroking each others hands in the packed restaurant.
Emilia - daughter of actors Joanna David and Edward Fox - was previously in a relationship with peace campaigner Jeremy Gilley, with whom she had her child Rose with, before her fling with Marco.
For the famous chef this break-up adds to his colourful love life, as he is currently separated from his third wife Mati Conejero.
Their £50 million divorce has been called to a halt due to the mounting legal bills.