balthazar gettyBalthazar Getty is reportedly still trying to win back estranged wife Rosetta, prompting rumours his fling with Sienna Miller is over.

Balthazar and Sienna’s relationship went public at the end of June, causing fashion designer Rosetta to flee to Italy with the couple’s four children - but Balthazar only confirmed his separation from his wife last week.

Now sources have told TMZ that the Brothers & Sisters star has been constantly calling Rosetta but she is refusing to speak to him so he has been sending frequent emails detailing how much he loves and misses her.

The source added: “[Balthazar] has been surprised by the backlash against him.

“People on [the Brothers & Sisters‘] set have been voicing their support for Rosetta and so have members of his family. He’s beginning to regret it ever happened.”