Um, awkward much? In a new clip from the upcoming episode of Keeping Up With the Kardashians, Kim Kardashian can’t hide her surprise when she discovers that Scott Disick spent the night at Kourtney’s house while the couple were supposedly broken up.

The sisters are chatting loudly about Disick, 32, in the kitchen when the self-proclaimed Lord walks into the kitchen looking disheveled and searching for car keys.

“I’ve never heard so much f—king noise in one house,” he grumbles as Kim, 35, watches him wide-eyed.

During a solo confessional, the Selfish author expresses her disbelief.

“I am in shock,” she says. “I haven’t seen him in so long. He obviously spent the night and Kourtney didn’t mention that he was there. I thought Kourtney was really strong and firm. I just don’t understand.”

Kourtney, 36, and Disick have remained cordial both on and off camera since their very public split in July. The mom of three has even taken their children — Mason, 5, Penelope, 3, and Reign, 11 months — to visit their father at the Malibu treatment center where he checked in last month.

The pair even attended their pastor Rich Wilkerson Jr.’s book party earlier this month.

But, Kourtney reassures Kim in the clip, being amicable and getting back together are two very different things.

“It’s like, he keeps saying, ‘I just want my family or whatever,’ so I was like, ‘Well, what are you doing to try to change your life?’” Kourtney was telling Kim before Disick walked in.

“There’s just a lot that would have to happen for him to get on a good path,” Kourtney concludes.

Watch the awkward interaction in the KUWTK clip above! Keeping Up With the Kardashians airs Sundays on E!

Want stories like these delivered straight to your inbox? Sign up now for the Us Weekly newsletter!