Jack was glad that Rebekah walked in at that moment, so he did not have to betray her to get Klaus from killing him. "What would that information really gain for me? I am already connected to your family." Jack added smoothly.
Jack knew he was not a good enough person not to. Just like he knew he was not the right person for Rebekah, could never be. Lucifer had pushed that subject, about how he needed to enjoy and embrace his biblical status, but that only made him regret further. The Mikaelson's were anything but innocent themselves, even Rebekah, but he knew he was poison.
"Rebekah!" Jack instinctively reprimanded her for slapping Klaus. His dark eyes wide in shock. He used his speed to get himself to her side, attempting to pull her away from him in case she felt the need to continue the assault.