Remember when Kylie Jenner and Blac Chyna patched things up with the ultimate modern diplomacy tool: the selfie? It only happened a couple of months ago, but here's a reminder in case your brain's Kardashian-related cache clears once a week:

While Kris was happy to have things smoothed over with Rob's boo, the latest Keeping Up With the Kardashians episode preview reveals that there was one person who wasn't: Khloe.