Nicki Minaj's experience as an American Idol 2013 judge has taught her that not everyone wears their heart on their sleeve like she does.

Nicki tells E! that she actually thought she and Mariah Carey were pals before they both started working on the show.

"Imagine someone that you loved your whole life, imagine you meeting them and then all of a sudden feeling like you did something horrible to them but you just don’t know what you did," Nicki says. 

"I just really thought that we were friends," Nicki continues. "But that’s the other thing I learned: This industry is so fake! You walk away thinking people are your friends, and they’re not. It’s a couple nice hi and byes, and then really, you better not step on nobody’s toes."

Nicki thinks that Mariah got a bit jealous of Nicki's clever quips.

"And God forbid you get a little shine, and God forbid you’re maybe witty or quick on your toes or make someone laugh, then maybe you’re making another person feel insecure," she adds. "And you shouldn’t have to dim your light to make another person shine."

Nicki and Mariah might not have to pretend to tolerate each other for much longer. Mariah is rumored to be getting the boot after this season, and it's still undetermined whether Nicki will be out the door as well.

So if you're throwing a party in the near future, you probably shouldn't invite both Nicki and Mariah to it. Just a heads-up.

Source: E!