On the mid-season finale of Keeping Up With the Kardashians, Kim and Khloe talk with Rob about a recent fight with Blac Chyna. The episode features Rob coming telling his sisters that keeping his relationship together is extra important now that he has a baby on the way, saying, quote, "My plan is not to have a kid with somebody and not be with the person. That's just bizarre to me." The mid-season finale airs this sunday on E.