According to TMZ, the two are speaking to each other again but not living together.
As new details unfold about the messy split, Rob's sisters have allegedly had enough of the on-again, off-again nature of his relationship with the mother of his child.
Caption: Rob Kardashian and Blac Chyna
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This report coincides with since-deleted text messages shared on Chyna's Instagram on Saturday, in which the reality personality threatened to 'slap the s**t' out of Rob.
Though they aren't taking sides, Kim, Khloe, and Kourtney want to wash their hands of the drama between their younger brother and the mother of his child.
The reality starlets think both parties are to blame.
Rob and Chyna's messy split was publicly displayed on social media this past weekend, a day before the premiere of their Rob & Chyna baby special.
First, the mother-of-two's Instagram account was hacked and her private messages were revealed.
Rob then took to Snapchat to blast her for 'taking his baby' and leaving him with Christmas around the corner.
She then told him 'it's over' with a public Instagram post.
However, it seemed that by Monday Rob was regretting the split, as he posted a picture of himself and Chyna during their relationship.
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He wrote: 'This weekend I was in an emotional bad place and did some things that embarrassed myself and my family.
'I apologize and I'm seeking help to deal with my flaws/issues. Please pray for me and I'm sorry @blacchyna. You are a great mother to our child and I love you.'
Chyna shared a screenshot of the post to her own Instagram and wordlessly left an ominous heart emoticon in her caption, leading fans to believe the two have decided to work things out.
A photo posted by ROBERT KARDASHIAN (@robkardashian) on Dec 19, 2016 at 11:17am PST