"Keeping Up with the Kardashians" star Rob Kardashian caused quite a social media uproar on Tuesday when he posted a text conversation he'd been having with Karrueche Tran, including a selfie that she had sent him.

Us Weekly reports that the typically reclusive Kardashian was so ecstatic about his communication with Chris Brown's ex, he posted the screen shots of the conversation, along with her picture, on Instagram and teased there might be romance brewing with Tran.

"I like when she send me pictures," Kardashian captioned the photo, adding heart emojis.

Kardashian's Instagram followers went crazy. They left comments, asking what was going on between the two celebrities. Some also warned Kardashian that Brown had reacted negatively in the past when he learned other men were communicating with Tran on social media.

Kardashian must have become uncomfortable with the online buzz and speculation because he changed the photo's caption on Instagram a few hours later -- making sure fans were clear about his relationship with Tran and that he didn't appreciate the social feedback.

"Yall dumb af," Kardashian wrote. "I been Friends with Karoooooch since high school. F*ck outta here with your negative sh*t."

The solitary TV personality deleted the text picture of Tran a few hours later, apparently unhappy with the ongoing social furor it generated.

Kardashian's decision to share his relationship with Tran on Instagram is part of his sudden increase in online activity, after spending the past year mostly off the radar. Last week he shared several inspirational messages on Instagram: "Protect your peace. Get rid of toxicity. Cleanse your space. Cultivate love" and "Let no one stop you."

On Wednesday, he shared a picture of French Montana and a friend, which he captioned, "Wolfpack!"

It seems the Arthur George Socks designer has been losing weight through the diet and exercise plan from celebrity personal trainer Gunnar Peterson, Us Weekly reported on Sept. 9.

The 28-year-old has "already lost more than 15 pounds," an insider said.

The weight loss and healthier lifestyle seem to have boosted Kardashian's self-esteem as well.