The British actress and her husband, German journalist Florian Haertel, are believed to have split after struggling to adopt a child.
They have now reportedly put their $4 million (£2.7 million) Hollywood mansion up for sale, amid speculation Kingston plans to move back to her native England with their daughter Salome, nine.
A source tells Britain’s Daily Mail, “It’s very, very recent. Alex is broken up about it and very raw. I don’t know if there is anyone else involved on Florian’s side, but Alex is devastated. She has pulled out (of) an upcoming TV project as she just needs time to recover.”
Kingston was previously married to Schindler’s List star Ralph Fiennes.