Rob Kardashian and his sister Kim Kardashian West have had their issues in the past, but recently have gotten along much better–that is until Kim talked about her brother during her recent cover story for Rolling Stone magazine. It was during that interview that she caused things to go from better to much worse with the insensitive wagging of her tongue.

“Rob and Kim had been cool again and were getting along,” a source told Us Weekly. “Now he’s furious at her again for her comments to Rolling Stone. He was been bitching her out on her phone. He’s mad–pissed as hell.”

What did Kim say to get Rob Kardashian all worked up?

It seems Rolling Stone asked her about her younger brother–specifically where he has been since sometime back in 2013.

“It’s not that mysterious, what’s happening with Rob,” she said. “He has gained weight. He feels uncomfortable being on the show, and that’s OK.”

“Do I think he smokes weed, drinks beer, hangs out and plays video games with his friends all day long? Yes,” she continued.

Then she was asked if hookers and meth might be Rob Kardashian’s real problem.

This is when Kim Kardashian should have stuffed a sock in her mouth.

“No no,” she told them. “Or he’d be skinny.”

“Rob has blocked Kim on his phone,” the source tells Us. “He doesn’t want to hear what she has to say. He says there’s no excuse she could possibly have for saying that. He will not forgive her.”

It wasn’t so long ago that Rob Kardashian was mad at Kim for being “two-faced” about his weight and depression issues. He even posted a photo of Gone Girl actress Rosamund Pike to his Instagram page, and compared Kim Kardashian to her character–who was a psychopathic murderer.

Should Kim Kardashian be prepared for a new derogatory post from Rob? He only recently deleted the Gone Girl reference from his Instagram account.

Who might Rob Kardashian choose this time to depict his sister?

Do you agree that Kim’s comments about her brother were a bit insensitive? Is there much thought at all when the Keeping Up With the Kardashians star opens her mouth?