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While some A-listers head for splitsville, others are getting hot and heavy. Which celebrity couples<\/a> are breaking up or hooking up this holiday season?\n<\/p>\n Sof\u00eda who? Five months after announcing his divorce from wife of seven years<\/a> Sof\u00eda Vergara<\/strong>, Joe Manganiello<\/strong> made his first public appearance with new gal pal Caitlin O\u2019Connor<\/strong> at the Children of Armenia Fund gala in NYC on December 9. The True Blood<\/em> star, 46, was initially linked to Caitlin, 34, when they were spotted leaving an L.A. gym together in September. \u201cSof\u00eda\u2019s feelings were hurt that he moved on so fast,\u201d an insider exclusively tells Life & Style<\/em>, adding that the 51-year-old has since happily moved on with orthopedic surgeon Justin Saliman herself. \u201cBut maybe Joe dating again is what encouraged her to do the same!\u201d<\/p>\n On November 22, Janet Leigh Holden<\/strong> filed for divorce from Eric McCormack<\/strong> following 26 years of marriage. The pair \u2014 who are parents to Finnigan<\/strong>, 21 \u2014 met in 1994 on the TV series Lonesome Dove<\/em>, where he was an actor and she was an assistant director, and wed three years later. Though she cited irreconcilable differences as the reason for their split, Eric, 60, previously credited Janet, 70, with keeping him grounded during the height of his Will & Grace<\/em> fame: \u201cI conducted myself as a much better human being because I was already married when all that came along.\u201d<\/p>\n Sophia Bush<\/strong> and Ashlyn Harris<\/strong><\/a> appeared to be going strong at Art Basel in Miami on December 8. When the One Tree Hill<\/em> alum, 41, and the soccer star, 38, evolved from friends to more in early October, they were plagued by rumors their love affair had begun while Ashlyn was still wed to Ali Krieger<\/strong>, 39. Ashlyn set the record straight, though. \u201cI did not step out on my marriage,\u201d she wrote on Instagram. \u201cI was always faithful in my marriage, if not always totally happy.\u201d<\/p>\n In a recent interview, Mariah Carey<\/strong> said she was looking forward to the holidays since the past year hasn\u2019t been the greatest \u2014 and many are speculating that\u2019s because the singer, 54, and beau Bryan Tanaka<\/strong> may have broken up after seven years together<\/a>. Eagle-eyed fans noted the backup dancer, 40, wasn\u2019t on stage with her during her first \u201cMerry Christmas One and All!\u201d show on November 15, despite being a concert mainstay since 2006. And he hasn\u2019t appeared in her Instagram feed since last December!<\/p>\n On Game of Thrones, she played the Queen of the North, so it\u2019s only fitting that Sophie Turner<\/strong>\u2019s new love would also have a title: Peregrine Pearson,<\/strong> a British aristocrat, is set to become the 5th Viscount Cowdray. The Do Revenge star, 27, and Perry, 29, were first seen clandestinely kissing in late October, but by early December, they publicly strolled around London hand-in-hand. \u201cSophie\u2019s quite taken with Perry,\u201d shares an insider, noting the actress recently reached a custody agreement in her divorce from Joe Jonas<\/strong>, 34. \u201cShe\u2019s just ready to have fun and let loose a little.\u201d<\/p>\n Will she save his soul? With his nasty divorce from Christine Baumgartner<\/strong>, 49, finally settled, Kevin Costner<\/strong> is getting close to Jewel<\/strong>. Mutual pal Richard Branson hosted the singer, 49, and the Yellowstone<\/em> star<\/a>, 68, on Necker Island, his private oasis in the British Virgin Islands, over Thanksgiving. \u201cThey definitely had a connection,\u201d says a source. \u201cJewel found him very charming.\u201d She even gave Kevin \u2014 who was seen with his arms wrapped around Jewel\u2019s waist during the trip \u2014 a shout-out on Instagram for supporting the annual charity tennis tournament she helps run on the island. \u201c[He] was kind enough to mentor our kids this year,\u201d Jewel wrote.<\/p>\n<\/p><\/div>\nJoe and Caitlin Red Carpet Official<\/h2>\n
Eric and Janet Over After 26 Years<\/h2>\n
Ashlyn and Sophia Survive Cheating Rumors<\/h2>\n
Is Mariah Single for X-Mas?<\/h2>\n
Sophie Grows Closer to Peregrine<\/h2>\n
Kevin Cozies Up to Jewel<\/h2>\n