Scott Disick last year, but she's trying to stay diplomatic about it.While appearing on "Watch What Happens Live with Andy Cohen," the "Real Housewives of Beverly Hills" star was asked to reveal the "worst thing" she said about Scott "behind his back.""You know, I've actually been quite nice about Scott Disick," she said after taking a pause to think about her answer. "And I would never say that out loud, anything.