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Khloé Kardashianis shipping a familiar couple.

Khloé joked that she wantsKourtney KardashianandScott Disickto get back together while celebrating sisterKylie Jenner‘s21st birthdayon Thursday night.

The reality star snapped a photo of the newly single Kourtney sitting next to Disick inside the birthday bash.

“A girl can dream,” wrote Khloé, as she filmed the exes sitting together.

SisterKim Kardashianeven got in on the joke, calling Kourtney and Disick an “old married couple.”

“Oh, just like an old married couple, on your phones,” said Kim in an Instagram video.

However, a source tells PEOPLE that “Scott and Kourtney didn’t really interact. He hung out with Kris though and seemed fine.”

Khloe Kardashian/Snapchat

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The whole KarJenner crew was at the bash, includingKendall Jenner. Kylie’s boyfriendTravis Scott, her brother-in-lawKanye West, and her parents,Kris JennerandCaitlyn Jenner, also came out.

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But despite Kourtney and Disick looking friendly at the party, a source recently told PEOPLE the former couple will never reunite.

“This is not going to happen,” the source said. “Kourtney will never get back with Scott.”

The exes — whoendedtheir nine-year relationship in July 2015 — share sonsMason, 8,Reign, 3, and daughterPenelope, 5, and the source said that Kardashian, 39, is pleased that Disick, 35, has been focused on fatherhood.

“She’s happy that he’s doing well and spending a lot of time with the kids,” the source said. “She’s happy about co-parenting with Scott, but that’s it.”

PEOPLE confirmed Kourtneysplitwith longtime boyfriendYounes Bendjimaearlier this week.

“She doesn’t mind being single and is keeping busy,” the source said. “Her kids are always her number one priority butexpect to see Kourtney out more at night. She’s enjoying the summer in L.A. and doing great.”

“It didn’t end well,” the source said.

source: people.com