People News

Jan 26, 2013, 20:19 GMT

Liberty Ross

Liberty Ross couldn't get past Rupert Sanders' affair with Kristen Stewart.

The British model and actress - who filed divorce papers this week at the Los Angeles County Superior Court, asking for spousal support and joint custody of their children Sykla, seven, and Tennyson, five - is still angry with her estranged director husband about his fling with his 'Snow White and the Huntsman' star Kristen, 22, last summer and decided she could never get over it.

A source close to the 34-year-old mother told USMagazine.com: 'This was a long time coming,' adding that Rupert 'did want to try to repair the relationship and didn't want a divorce' following his affair.

A second source said the Liberty 'was more than a little upset' about the betrayal, explaining: 'They gave it a shot for the kids, [but] she was just so angry . . .she's the kind of person who wouldn't really ever get over it.'

Rupert has filed his response to the petition in which he also asks for joint custody and he has requested that he and Liberty split the court costs between them.

Liberty and Rupert's marriage has been under strain ever since his fling with 'Twilight Saga' actress Kristen Stewart was exposed last year.

Although Liberty initially kicked the director out of their home after his infidelity was revealed, they began couples therapy in an attempt to save their marriage.

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Liberty Ross couldn't forget affair