Rob Kardashian insecurities are showing because Kimmy’s little brother Feels Blac Chyna Wants A Rapper! Plus he admits to crushing on Kim K. Does this come as a surprise to anyone???

Flip and get the tea we’re spilling on Rob Kardashian feeling like a chubby chump…

CelebNReality247.com has just got word that Rob Kardashian and Blac Chyna have been fighting for months, partially because he’s convinced she’s going to leave him for a rapper.

Hello, insecurity of one?

Rob is convinced that his fiance that he drove to pick up after she was 86’d off a plane last year is now having a serious wondering eye.

Now we all know that Rob Kardashian and Blac Chyna have separated, but his insecurity is ruining his relationship. We all know that Chyna has been in relationships with Tyga and Future, so maybe she likes her man a bit darker.

But lets be real Tyga is NO catch. And the drama that Ciara has been having with Future also proves he is the type of guy you smash for a while and then leave. She is attracted to non-committal types who are about themselves, so Rob is a catch. Plus the only male Kardashian has mula up the ying yang!

Yes, honey we’re talking paper. Blac Chyna can always grow to love a chub chub, unless he goes back to the old slim and sexy Rob.

Here is what we are hearing:

Our source says she had to stop listening to certain songs when Rob was around because he once told her point-blank, “You’d rather date a rapper than a fat Armenian.”

As we previously reported, Rob’s spiraled back into depression, and has put on weight while they’ve been on the outs. Their convos these days are tense … especially if Chyna suggests he work out and eat healthy. He takes it as an insult, but we’re told she’s concerned about his health.

Suffice to say, the days of couples workout sessions are a thing of the past.

Why are people surprised? Chyna is with Rob for the come up. Let’s be real and now that Rob is finally waking up to the memo his insecurity is showing. Maybe he should eat a sandwich and think about it.

Or he could man up and get over it. Choices!

In other Rob news that makes us say YUCKY YUCK YUCK!  Rob just blatantly admitted that his first crush was his own sister Kimmy Kakes Kardashian!

In a brief joint interview, Rob Kardashian and his (possibly ex) fianceè Blac Chyna sat down together to discuss their childhood crushes. Chyna’s answer is pretty tame; she used to have the hots for Ricky Martin and sings a little bit of “Livin’ La Vida Loca” to show her love for the Latin bombshell. – Oxygen

When it’s Rob’s turn, Chyna answers for him. First, saying that Rob used to have a crush on Jennifer Lopez. Rob smiles shyly and says:

“That’s pretty accurate.”

Then Chyna says:

“J.Lo and Kim Kardashian.”

And how does Rob respond?

He says:

“That’s also pretty accurate.”

OMG, we just threw up in our mouth.

Photos: Instagram/Startraks/REX