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Rhea Perlman and Danny DeVito
And longtime couples also have challenges, too.
In October 2012, Danny DeVito and Rhea Perlman announced they were separating after 30 years of marriage. The former "Taxi" co-stars wed in 1982 and share three children. The state of their marriage, though, was in flux by early December when DeVito was asked about it. He responded, "We're working on it."