Balthazar Getty admits marriage is over... but it's Sienna's reputation that's really left in tatters

It comes just a week after steamy pictures of the actor and scantily clad Sienna were spotted cavorting around while holidaying on the Amalfi coast.

He said in a statement: 'The breakdown of a marriage is a very difficult and painful experience especially when children are involved.

Affair: Sienna Miller's reputation has been damaged by her affair with married Brothers and Sisters star Balthazar Getty

'In light of the fact that many pictures have surfaced in print and on the internet which has caused myself and my family great embarrassment, I felt it necessary to at least acknowledge publicly that, yes indeed, my wife and I have separated and I will not be commenting any further.'

While Sienna, 26, may have finally got her man, her reputation has been left in tatters.

The actress, who was hoping break the American market with her upcoming film G.I. Joe: Rise of Cobra, doesn't appear to have won many Stateside fans with her latest antics.

Hands on: Sienna and Balthazar Getty in Prague during the early stages of their liaison

She has been branded a 'homewrecker' with 'no morals' by a number of U.S. blogs - and that is by far the kindest description.

Celebrity observer Perez Hilton has given her an unprintable nickname, which he claims she 'continually lives up'.

But her growing unpopularity doesn't seem to be slowing her down her romance.

There are rumours the pair, who were first linked in June, are looking to move in together.

Over: Getty has announced his marriage to Rosetta has ended

While Balthazar, 33, reportedly suggested she move into his Los Angeles mansion, which is now empty after his wife and four children moved out, but she is said to be keen to find a new place.

The couple were introduced earlier this year by Sienna's Edge of Love co-star Matthew Rhys, who stars alongside Balthazar in hit U.S. TV show ‘Brothers and Sisters'.

Following the news of the affair, Balthazar's wife Rosetta fled the U.S. with their four children - Cassius, eight, Grace, seven, Violet, four, and June, 10 months - with her.

A friend says Rosetta feels 'humiliated' by the affair.

Meanwhile, Sienna's ex Rhys Ifans is far from being devastated over the end of their year-long romance.

The Welsh actor has told friends: 'You'd think that he would be hurt by the pictures of Sienna and Balthazar but in fact he couldn't be happier. He feels that Sienna has shown herself for who she really is.

'He feels that he has had a lucky escape.'