On Friday's episode of The Ellen DeGeneres Show, Kim Kardashian finally broke her silence on her sister Khloé's cheating baby daddy — and it was not nice. The KUTWK star shaded Tristan Thompson but insisted she would not say more to protect their daughter True Thompson.

"Like I don't even know how to describe it besides, it's just so f–ked up," she told the talk show host. "She's so strong and she's doing the best that she can — it's a really sad situation all over. I kind of made this rule with [Rob Kardashian], if there's a baby involved, I'm going to keep it cute, and keep it classy, and not talk too bad. I'm going to try not to say anything so negative because, one day, True is going to see this and you know, it's so messed up."

Well, the Cleveland Cavaliers star has heard the comments and he is fuming over Kim talking about his relationship with Khloé on national television. "Tristan’s pissed at Kim and really wishes she and the rest of their family will mind their own business and keep his name out of their mouths," a source told In Touch exclusively. "He feels Kim’s making it worse for Khloé and True by going on Ellen and who knows who else and talking about their problems."

The NBA star also thinks Khloé's older sister shouldn't be talking — especially since Kanye West has been ranting non-stop on Twitter lately. "There’s a lot Tristan could say about Kim and Kanye that would not be nice at all but you don’t see him dragging their name through the mud," the insider added. "Kim needs to stop. She needs to stay in her lane and stop trying to soak up more attention by talking about him and Khloé."

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Previously, other members of the Kardashian family have spoken out about the cheating scandal in more subtle ways. Kourtney Kardashian shaded the athlete with a "girl power" Instagram post while Malika Haqq, Khloé's BFF, unfollowed him on social media. Despite their reactions, Tristan is determined to win his girlfriend back. "[Tristan]'s been in Khloé's ears apologizing, telling her that these videos aren't what they look like," a source previosuly told In Touch. "He's telling her that the girl he was with at the hotel is [a friend of a friend] and that the video of him kissing that chick last year was a stupid bet he made with one of his teammates."

We wonder what Khloé thinks of Kim's Ellen Show confession?