Rob Kardashian just tweeted Kylie Jenner's official phone number

We all know it hasn't been smooth sailing with Rob, Chyna & the fam (Seeing as she's Kylie's soon to be sister-in-law, her current boyfriend's ex-girlfriend & baby mama). It's just all so confusing.

Anyhoo, the reality star tweeted Kylie's digits for ALL of his millions of Twitter followers to see!

One might ask why exactly? Well, it looks as if Kylizzle didn't invite Blac Chyna to her own baby shower.