Rob Kardashian's star's Instagram had a noticeable difference when people realized that all of Blac Chyna 's photos had been taken off. E! News learns it's nothing to be alarmed about—the pair, who are expecting their first child together, are still in a relationship. Apparently, this was just the aftermath of a fight between the couple. A source tells E! News, "Rob and her have been getting into little tiffs and Blac Chyna flipped on Rob".