The latest episode of Keeping Up with the Kardashians was a little intense, as the controversial family- particularly the sisters - argued over Rob Kardashian's engagement to Blac Chyna.

Even though the whole Kardashians family was on vacation in Vail, Colorado, they were disturbed by the news that Rob Kardashian was already engaged to Blac Chyna without informing them.

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"We wake up to all of these pictures of my brother just getting engaged," Kim Kardashian said in an interview on the show.

Kanye West's wife felt so hurt that her little brother didn't tell the Kardashian family about his plans.

Khloe Kardashian also admitted that discovering her brother's engagement on social media put "a really bad taste" in her mouth.

In fact, the 31-year-old host of Kocktails with Khloé said that Rob didn't tell them a single thing about his big life change.

Kourtney Kardashian looked as hurt as her other sisters, but she later explained that she didn't really care what Rob Kardashian wanted to do with his life.

In fact, the ex-wife of Scott Disick revealed that they had advised Rob Kardashian not to get Blac Chyna pregnant, but it was all happening now.

"Just be happy that he's even exiting the house. It's not our decision," Kourtney Kardashian told her sisters.

The mother-of-three noticed that Rob looked happy in his fiance's arms and that his decision to marry her was something they have no control over.

"So, why cause any tension or add any drama?" Kourtney Kardashian went on. "We should just be happy for them."

TagsKeeping Up With The Kardashians, Rob Kardashian, Kim Kardashian, Khloe Kardashian, Kourtney Kardashian, Blac Chyna