Los Angeles - Rob Kardashian drove 1 377 miles (2 216km) to pick up Blac Chyna when she was released from jail.
The reclusive Keeping Up With the Kardashians star reportedly set off from Los Angeles minutes after his girlfriend was arrested for public intoxication at the Austin International Airport in Texas on Friday and was there to personally pick her up when she was released the following morning, TMZ reports.
The drive is a 19-hour minimum, and it is not clear if Rob was accompanied by anyone to share the gruelling stint behind the wheel of his Bentley.
Insiders told the website that the Kardashian family is alarmed as they believe the road trip is a clear sign Rob is acting irrationally, and they are said to be worried he is under the influence of drugs or alcohol.
After getting out of jail, the model wasted little time in posting about her release on social media.
In a video shared on Snapchat, Blac is seen sipping from a Coke bottle, as a line of shamrocks run across the bottom of the footage.
She asks her fans in the clip: "Did you guys miss me?"
Rob also shared a snap of Blac after her release.
In a screenshot of a FaceTime conversation the couple had, Blac can be seen apparently under the covers while she chats to Rob.
Meanwhile, Blac's pet name for Rob has been revealed, after fans picked up on the fact she had referenced him as 'Zaddy' several times since they were first romantically linked.
Posting a shot of a "#FreeChyna" hashtag on her Instagram, Blac wrote alongside the picture: "When Zaddy holds u down no matter what..."
Earlier in the week, she had shared a raunchy selfie with the caption: "Waiting on Zaddy like [tongue emoji]."