Kim Kardashian says she is protecting her children from reports on Kanye West's controversial behavior

Kim Kardashian said that raising children with ex-husband Kanye West is really “hard,"  People- magazine reported.

During a Monday guest spot on the Angie Martinez IRL podcast, The Kardashians star, 42, discussed the highly controversial artist and their four children.

"Co-parenting is really f---ing hard," Kardashian said, as she was brought to tears. The former couple, who share daughters North, 9, Chicago, 4, and sons Saint, 6, and Psalm, 3, finalized their highly-publicized divorce in November, following West's on-and-off social media play-by-play of the situation.

Despite what is going on with West, Kardashian stands by the decision to shield their kids from what plays out online and says she is doing her best.

"If they don't know things that are being said, why would I ever bring that energy to them? That is real, heavy, grownup s--- that they are not ready to deal with," she said. "When they are, we will have those conversations. One day, my kids will thank me for not sitting here and bashing their dad. I could," she added.

"I definitely protected him," she expanded in the interview, "and I still will in the eyes of my kids. For my kids. So, in my home, my kids don't know anything that goes on [in] the outside world," Kardashian shared,

"I am holding on by a thread. I know that I am so close to that not happening," the SKIMS founder continued of the kids' inevitable access to public information about their parents, "but while it is still that way, I will protect that to the end of the Earth as long as I can."

"My kids don't know anything," she reiterated on the podcast. "So, at school, some of my best friends are the teachers, so I know what goes on at recess and lunchtime. I hear what is being talked about."

"If we are riding to school, and they want to listen to their dad's music — no matter what we are going through — I have to have that smile on my face and blast his music and sing along with my kids. [I can] act like nothing is wrong and as soon as I drop them off, I can have a good cry."