'We are worried about Rob': Kardashian sisters watch their brother's back while Blac Chyna threatens split in KUWTK sneak peek

By Dailymail.com Reporter

Published: 19:55 EST, 18 April 2017 | Updated: 20:14 EST, 18 April 2017

Blac Chyna texted all of Rob Kardashian's famous sisters to say she's going to leave him, according to Sunday's new Keeping Up With The Kardashians. 

The drama between Rob, 30, and Blac, 28, seems to be taking center-stage in the E! show, as seen in a sneak peek on Tuesday. 

'Rob and Chyna got into a big fight,' explains his sister Kim, adding: 'We're all worried about Rob.' 

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On-off couple: The drama between Rob, 30, and Chyna, 28, seems to be taking centre-stage in the E! show, as seen in a sneak peek on Tuesday

On-off couple: The drama between Rob, 30, and Blac, 28, seems to be taking centre-stage in the E! show, as seen in a sneak peek on Tuesday

The on-off couple have repeatedly split, after a series of explosive arguments. 

They are reportedly currently back together. 

In the teaser for the show, Kim, Khloé and Kylie Jenner are seen chatting on FaceTime with their brother. 

Concerns: 'Rob and Chyna got into a big fight,' explains his sister Kim, adding: 'We're all worried about Rob'

Concerns: 'Rob and Chyna got into a big fight,' explains his sister Kim, adding: 'We're all worried about Rob'

Drama: Khloé, 32, informs him that Chyna has been threatening to break things off with him

Drama: Khloé, 32, informs him that Chyna has been threatening to break things off with him

Asking the questions: 'She texted all your sisters and said that she's ready to leave you,' says Khloé, 32

Asking the questions: 'She texted all your sisters and said that she's ready to leave you,' says Khloé, 32

Khloé, 32, informs him that Chyna has been threatening to break things off with him. 

'She texted all your sisters and said that she's ready to leave you,' says Khloé, 32.

But Rob isn't giving up that easily: 'I definitely do love her and want to be with her,' he says.

'Am I crazy?!' demands Khloé in response. 'What does that mean?'

Relationship troubles: Rob is on a Facetime call with his sisters

Relationship troubles: Rob is on a Facetime call with his sisters

Family matter: Kylie Jenner is in on the chat

Family matter: Kylie Jenner is in on the chat

Sisters: Khloe, Kim, Kourtney and Kylie are seen chatting to Rob about his volatile romantic relationship with the former stripper

Sisters: Khloe, Kim, Kourtney and Kylie are seen chatting to Rob about his volatile romantic relationship with the former stripper

Rob and Blac share five-month-old daughter, Dream.

They resumed their rocky on-off relationship earlier this month with a flirty Snapchat video that showed him kissing his baby momma.

The constantly scrapping couple may be trying to make a go of it for the sake of their five-month-old daughter. 

The former flames embarked on a whirlwind romance in January 2016, announcing their engagement in April and pregnancy in May.

Keeping Up with the Kardashians airs Sundays (9 p.m. ET) on E!

Baby: Rob and Blac share five-month-old daughter, Dream

Baby: Rob and Blac share five-month-old daughter, Dream

Volatile: The on-off couple are reportedly back on again (pictured Nov 10)

Volatile: The on-off couple are reportedly back on again (pictured Nov 10)

 

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