Robert F. Kennedy Jr. attended the Washington, D.C. memorial service held for his mother, Ethel Kennedy , alongside his wife, actress Cheryl Hines—despite the ongoing fallout from his alleged relationship with reporter Olivia Nuzzi and divorce rumors . In a court filing on Monday, Nuzzi’s ex-fiance, Ryan Lizza, accused the star reporter of “cheating on me with a married man.” The filing from Lizza also claimed this man, presumably RFK Jr., wanted to “possess,” “control,” and “impregnate” her. Despite the rumors and flurry of legal action, RFK and Hines also attended Ethel’s funeral service together in Centerville, Massachusetts on Monday. Ethel was married to former attorney general and Democratic presidential…..