'We Don't Even Know If It's True!' Kim, Khloe, & Kourtney SLAM Rob Kardashian Over Being Left Out Of Engagement To Blac Chyna

Kim, Kourtney, and Khloe Kardashian had a lot to say about Rob's engagement to Blac Chyna — but he got in the final word!

In a new KUWTK promo clip, the siblings sit down to duke it out after the 29-year-old posted on social media that he was engaged.

"You obviously know what happened," Rob begins, before North's mom cuts him off to make it clear it was through social media and not her brother.

"Everything that happened, I'm very happy about," he continued, adding that he gave Blac, 28, the ring before getting down on one knee.

"It happened spontaneously, so that's why you guys weren't in the loop 'cause I was going to do this regardless — I just didn't know when, and it just ended up happening," he added.

Then, the sisters began digging into him — saying that they were hurt by him.

"We want to be honest with you — we felt like we should have just at least got a text [that] said, 'Hey, guys. I know you're seeing this on social media. It's true,'" Kim, 35, explained. "People were asking us, and we were like, 'We don't even know if it's true.'" Rob came back that they should've reached out to him instead, and Kourtney, 37, and Khloe, 32, weren't too pleased.

Ultimately, Rob ended up apologizing to his sisters for hurting their feelings — and it seemed like the family moved on. But as Star readers know, they’re still fighting as Tyga’s ex continues to diss the famous family!