Rob Kardashian under investigation for threatening Blac Chyna’s alleged boyfriend

Rob Kardashian is under investigation for allegedly threatening a man who was pictured kissing his fiancee Blac Chyna (Click here if you missed it).
The 29-year-old allegedly physically threatened Pilot Jones, who has been keeping company with his pregnant fiancée, over text message, according to TMZ. In the text message Rob wrote, 'Leave my wife alone. I’m not playing with you.’ Chyna on the other took to Instagram to blast her alleged side boyfriend saying the guy is gay. She said she agreed to take those pictures to make his boyfriend jealous. She wrote:

"Ok let's state facts !!!

I been quiet for too long!!!
So JC Pilot Jones whatever the f-ck his name is has already tried to put out a story saying that he's the potential father of my child really N-gga ?!?!?!
Let me start off by saying this young man Is "GAY" !!! The only reason we took those pictures other than me trying to be a good friend was so he could send it to his boyfriend to make him like jealous & say that he's going back to girls! Mind you at the time I THOUGHT THIS WAS MY FRIEND and I didn't see a problem with it!!! This was over two years ago people !!! I never had sex with him ! NEVER EVER! Nothing ever happened past these pics.
Mind you if you really look at the picture, look at my right hand it doesn't have my "Future" tattoo next to that the fucking pictures was taken with the ring light!!! Staged Af!
But now I understand why you put these pictures out ! Ohhh because you have a song with Trina you trying to get your f-cking name popping ?!?
Or are you mad at the fact that I did my Chymoji app without you dumbass JC ?!?? Your greedy ass wanted a cut of something that wasn't yours and u came at my lawyer asking for crazy money !!! U really mad ?!?! Like you really stooped this low ?!?! Coming for a Bitch that's due in a few days ! Really trying to start beef with my Fiancé !!! Your a fu-king joke ! You just played yourself !
I would never f-ck you !
Ur nasty ass f-ck !
And everybody knows Chyna LIVES for the Community!
But let's be for real ... ur a dirty ass Punk !!!! You can never join my roster BITCH !!!!!!!!!!!!!"