Rob Kardashian Rob Kardashian

It looks like Rob Kardashian has his panties socks in a bunch.

The reality star and sock designer recently split with his rumored girlfriend, singer Rita Ora, and was a little too forthcoming with details about their split on Twitter.

"She cheated on me with nearly 20 dudes while we were together, I wonder how many she will sleep with now that we apart? But I mean 20?!" Kardashian, 25, tweeted on Monday, according to The Insider. "How can a woman who is so busy trying to start her own career have time to be with so many dudes all while in a relationship?!"

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His sister, Khloe Kardashian-Odom, also sent him the comforting message, "Cheaters never prosper @RobKardashia. I'll be home today... Try and smile little brother," via Twitter before all of their tweets were deleted later on Monday.

The sole Kardashian son and the "R.I.P." singer, 22, reportedly started dating over the summer. Although both parties initially denied they were an item, Kardashian posted romantic photos with Ora in late October.

Ora has yet to respond publicly to Kardashian's allegations. Whose side are you on?