VIDEO: The singer opens up to Nightline about his split from Jennifer Lopez, denies cheating rumors and admits he will "always love Jennifer." EVERYONE HAS BEEN DISHING ON THE MARC ANTHONY / J-LO DIVORCE, BUT NOW MARC HIMSELF IS COMING CLEAN. THE NOTORIOUSLY PRIVATE SINGER SAT DOWN WITH ABC’S JOHN QUINONES FOR HIS FIRST INTERVIEW SINCE THE COUPLE’S SPLIT. SO WHAT OF THOSE RUMORS THAT MARC CHEATED -- EITHER WITH HIS "HAWTHORNE" CO-STAR JADA PINKETT SMITH OR A MYSTERY FLIGHT ATTENDANT? SO WHAT OF THOSE RUMORS THAT MARC CHEATED -- EITHER WITH HIS "HAWTHORNE" CO-STAR JADA PINKETT SMITH OR A MYSTERY FLIGHT ATTENDANT? YOU CAN SEE MORE OF MARC’S INTERVIEW TONIGHT ON ABC’S NIGHTLINE. Less