Nick, 36, opened up about his ex-wife on the daytime show, and revealed the most "diva thing" Mariah, 47, has done involved their five-year-old twins, Moroccan and Monroe.
"Have twins," Nick said when asked by the talk show host. "She shut the whole hospital down!”
Along with the "Fantasy" singer's diva ways, the MTV star also revealed the couple is not as close as people are speculating.
(Photo Credit: Splash)
Earlier this week, the pair sparked reconciliation rumors after stepping out to dinner together, and Nick telling paparazzi that they've "always been official."
However, the father-of-three reassured fans they are just co-parenting.
"There would be nothing wrong with that," Nick replied when asked if he was sleeping with Mariah. "But that's not the case."
Previously, Nick opened up about their divorce and why they decided to call it quits after six years of marriage.
"You put the kids first," Nick told Us Weekly, "but then when you understand that you have unconditional love for these human beings and you want the best existence for them, then you put whatever differences you may have had aside."
He continued, "A lot of times when you think about breakups in relationships, it's usually over ego. And if you can remove your ego from that, and make it about your loved ones, then that's what it's about."
We're still not convinced! For a look at Nick and Mariah's relationship timeline, click through the gallery below!