Rachel Bilson was seen dropping off her daughter to estranged partner Hayden Christensen Tuesday.The OC beauty kept low-key in a burgundy top, not seen speaking with the Star Wars actor who sported a tee shirt and denim.The couple of a decade's break up is rumored to involve actress Emma Roberts, 26, with reports that the Scream Queen and Canadian actor exchanged intimate texts reported Monday by The Blast and confirmed by Us on Tuesday.Rachel and Hayden, both 36, kept on their poker faces while meeting to swap daughter Briar Rose, almost three.The brunette beauty let her highlighted locks sweep down in elegant waves while her Canadian ex sported a black baseball cap and jeans.The Life As A House actor kept a slate colored backpack filled with daddy essentials on stand-by as he and his toddler walked off.Earlier today a source told with Us Weekly that Emma Roberts 'was at the center' of Christensen and Bilson's split.The insider explained 'She’s full-time back in LA. He’s in Toronto,' continuing to say 'They’ve been on the outs for a couple of months.'The source made it clear things were over between the duo, telling Us: 'They are completely, officially done.'On Monday, The Blast was the first to report the Hart Of Dixie darling had ended things with Christensen because she 'believed [Hayden] was involved in an inappropriate relationship' with the Scream Queens actress.The couple, who revealed they were splitting in September, reportedly broke things off 'shortly after' Rachel 'discovered messages' which seemed to hint at a more-than-platonic relationship between her partner and his Little Italy co-star.Rachel and Hayden met on the set of the film Jumper in 2008 and were engaged in December of that year.The pair welcomed daughter Briar Rose to the world in October 2014. The couple, who are not married, were last seen together in public on September 7 at the opening of 29Rooms in NYC.Emma was last linked to on-off beau and American Horror Story castmate Evan Peters, seen sporting an engagment ring as recently as tktktk. || Shocking
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