She could be forgiven for feeling a little smug over her ex's extra-curricular activities.
But Jude Law's ex-wife, Sadie Frost, has finally spoken about his infidelity - and offered distraught Sienna Miller a shoulder to cry on.
Jude's seven-month engagement to Sienna is hanging by a thread after his fling with Daisy Wright, the nanny of his three children with Sadie.
And Sadie, who finally divorced Jude this month after they split up two years ago, has nothing but sympathy for actress Sienna.
"My heart goes out to her, I really feel for her," said Sadie, who was attending a central London party with new boyfriend Jackson Scott.
"I feel very sorry that she is so hurt she had to walk out.
"I will talk to her if she calls me. I'll have to consider what I say."
Sadie admitted she was as shocked as anyone when she read about Jude's affair.
"I didn't see this one coming - it was a total shock to everyone," she added.
"This is not my crisis thank God. My life has moved on - I have kids and my own life to live."
Jude and Sienna have been locked in talks over their future.
She was back in the theatre last night playing Cecilia in a West End production of Shakespeare's As You Like It after missing Tuesday's performance.


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