Sienna Miller would “never” have got involved with Balthazar Getty if he was still happily married.

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The Edge of Love actress – who was first romantically linked to father-of-four Balthazar earlier this year – has unfairly been branded a home wrecker, according to friends of the couple.

One pal said: “Sienna and Balthazar met through friends and he was already separated from his wife. When he released a statement in July saying he had split from his wife Rosetta, he had been sleeping on friends’ couches for six months.”

Despite reports Balthazar was “desperately” trying to convince Rosetta to take him back, friends insist Sienna and the Brothers and Sisters actor are incredibly happy together.

The friend added to the New York Post: “Please. Sienna and he are in love. They’re living together in Los Angeles. Everyone knows about her and accepts her.

“It’s just annoying that all this misinformation is out there. He should have announced his separation a lot earlier than he did – she was always told he was separated. There’s no way she would ever get involved with another married man after Jude Law.”