Heather Mills is secretly romancing a millionaire theater producer.
The former model, the ex-wife of Beatles legend Sir Paul McCartney, has enjoyed several dates with Marc Sinden but is keen to keep the fledgling relationship under wraps.
A source said: "They met a while ago through mutual friends and have seen each other a number of times."
Heather has told friends the West End producer, who is the son of British actor Sir Donald Sinden, is her "total confidante."
The pair went to London's Playhouse Theatre last week to watch "La Cage Aux Folles" and were seen arm-in-arm as they left the venue.
Heather and Marc - who is worth an estimated £1.8 million [$2.7 million] - then went to Covent Garden and had dinner at the Joe Allen restaurant.
The pair were seen together again last weekend, when they visited London's Tate Modern museum to look at the Rothko exhibition.
Marc was previously romantically linked to Sir Mick Jagger's ex-wife Jerry Hall.
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