Sienna Miller and Brothers and Sisters star boyfriend Balthazar Getty's relationship is in trouble sources have told the Daily Mail. "Sienna is back in London to give them both some cooling-off time. They are still together at the moment but she has said things aren’t good," the insider claims. "There have been some pretty unpleasant rows, largely over Balthazar’s reluctance to commit. She has really wanted to be able to step out as a couple but Balthazar is very torn over his children and it looks like he might be wanting to go back to his family. Sienna is devastated. She knows she’s been branded a marriage wrecker but she swears it isn’t the case. She says the marriage was over when she and Balthazar met and that he was ready to move on. He promised her the earth but he hasn’t kept to any of his promises and has made no moves as far as a divorce is concerned. Sienna is totally paranoid he is going to go back to his family. She feels very let down."

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