Kylie Jenner Tyga
Tyga and Kylie Jenner attend Harper's Bazaar's celebration of 'ICONS By Carine Roitfeld' at The Plaza Hotel during New York Fashion Week in Manhattan, New York, U.S., September 9, 2016. Reuters/Andrew Kelly

The relationship of Rob Kardashian and Blac Chyna has always been somewhat of a thorn with his family. But even now that the two personalities have reportedly broken up, Blac is still the root of Rob’s family battles.

As reported by TMZ, Rob reportedly blew over when he learned that Blac was not invited to a baby shower that his sisters threw for him. Upon learning this, he went on Twitter and revealed what is supposedly Kylie Jenner’s real telephone number, which has already been replaced.

Rob Kardashian reveals Kylie Jenner's number on Twitter
Rob Kardashian reveals Kylie Jenner's number on Twitter

His anger may have been understood, as refusing to invite the mother of his child really does seem like a slap in the face, but the publication goes on to say that the sisters planned a separate shower for Blac.

Rob and Blac have apparently not been speaking to each other for months now, and his sisters thought it would be best to have different his and hers showers -- and Blac agreed it would be best.

Rob’s anger-driven tweets were made before he knew Blac agreed to the arrangement, but the sock designer is reportedly still pissed about the situation.

The rift between Rob and his sisters arguably began when he started to date Blac. At the time, Kylie was already dating rapper Tyga, who shares a 3-year-old son with Blac. Nevertheless, when the pregnancy and engagement announcements were made, Kylie and Blac put everything behind them for a while. Rob even posted a sweet post on Instagram documenting the same.

“So happy my girls finally got to talk and make peace! #MyFamily #AllLove,” he wrote in a now-deleted post.

But when Blac released a set of Chymojis, including one that resembled Blac slapping Kylie, everything went downhill again. In an episode of “Keeping Up With The Kardashians,” Kourtney Kardashian shared how her conversation with Rob went.

"I'm gonna go on the red carpet tonight and I'm gonna tell everybody how I have the worst, most unsupportive, disgusting family," Rob reportedly told her.

At this point, it is unknown why Rob and Blac have gone their separate ways.