Article continues below advertisementPatrick Swayze's widow, Lisa Niemi Swayze, is opening up about the heartbreaking final chapter of her late husband's life - and the devastating moment they first learned of his diagnosis.In a new interview published Friday, April 17, the actress, 69, recalled the instant the beloved Dirty Dancing star realized the severity of his illness after being diagnosed with stage IV pancreatic cancer."Nothing prepares you," Lisa said during a candid chat with Us Weekly.