While Twitter was buzzing about the debates last night, Rob Kardashian made a quick surprise appearance to tweet out Kylie Jenner's personal cell phone number. Twice.

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The number is now out of service, but the tweets remain up on Rob\'s page as of 8 AM.

This is an act of anger, he made clear in a third tweet: "Didn't invite the mother of my child to a baby shower you all were trying to throw for me!!?" he wrote. "You all must have lost your damn minds." Which means yesterday the Kardashian-Jenners had or sent out invites to a party to celebrate Rob Kardashian and Blac Chyna's soon-to-arrive baby girl. They maybe excluded Chyna from the guest list (despite having seemingly made peace) or maybe the Paperless Post just went to Chyna's spam. Hmm...

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The cell phone number he tweeted really was Kylie's though, a source confirmed to People. It's now out of service, meaning she has (obviously) changed her number.

Kylie has posted no response yet, but with any luck, Keeping Up With the Kardashians will document all of this madness.