Rob Kardashian is getting off his policy of isolation and he's doing so with a bang!

The 28-year-old reality star caused an online uproar on September 22, after he mysteriously shared a text conversation he'd been having with Chris Brown's ex, Karrueche Tran, including a photo she sent of herself to the usually quiet Kardashian.

Rob posted a screen shot of the pair's text session on his Instagram and revealed Tran who he saved as Karroooooooooochieeee on his phone, had sent him a photo of herself. Fans immediately suggested that something was brooding between the stars.

"I like when she send me pictures," Kardashian captioned the snap, followed by a couple of heart emojis.

Instagram users began asking what was going on between them and referred to the fact that Tran's ex  Brown had reacted less than positively in the past, when his ex had been linked to other men (such as Marques Houston and Tyson Beckford) via social media.

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Evidently unhappy with the online excitement and speculation, Kardashian returned to Instagram a few hours later to change his caption, and spell out both the nature of his relationship with Tran, and also his dislike of the social hysteria.

"Yall dumb af," a moody Kardashian wrote. "I been Friends with Karoooooch since high school. F--k outta here with your negative s--t," he added.

The Instagram share of Tran's text photo is the latest in a recent spurt of online activity from Kardashian, who has spent much of last year largely off-radar. In the past week he's shared a number of inspirational messages with his followers including, "Protect your peace. Get rid of toxicity. Cleanse your space. Cultivate love."