Command PR publicity duo Simon Huck and Jonathan Cheban have parted ways, sources tell Page Six. We hear that the split was amicable and that Huck bought Cheban’s share of the entertainment-p.r. agency. Cheban, best known as Kim Kardashian’s closest friend, is focusing on personal projects, including a new sushi restaurant in Miami, but will remain on board with Command as a consultant. Huck and Cheban were featured on an E! reality show, “Spin Crowd,” executive-produced by Kardashian.