Scott Disick Admits He's Not Happy After Split From Kourtney Kardashian [WATCH]

Scott Disick is clearly not over Kourtney Kardashian.

In the sneak peek for the upcoming "Keeping Up with the Kardashians" episode, Disick had a heart-to-heart talk with Kourtney's sister, Kim Kardashian. During their conversation, Sofia Richie's boyfriend confessed that he is not happy with anybody else after his split from Kourtney. He is also not happy that his ex has already found someone new.

"I didn't see the show because I was living it," Disick, 34, told Kim when she brought up his Cannes antics. "But looking at my perspective, she was on vacation with one man the whole trip — that looks like a happier scenario than me jumping around, trying to find happiness and these girls are not fulfilling that. I'm just not happy with anybody."

Meanwhile, Kim told Disick that Kourtney would support him if he ever found someone that he is happy with. In addition, the mom-of-two said that Kourtney is concerned about him partying and drinking excessively, but Disick shut her down. "Sure, she didn't say that. Not once to me," he said.

Kim explained to Disick that even if Kourtney is still concerned about his welfare, she has to move on. For her, Disick had a hard time accepting this. Meanwhile, the father of Kourtney's three children stressed that he understands, but it's a hard thing for him to swallow.

"Sometimes, I just feel kind of insecure," Disick told Kim. "Like if Kourtney met somebody, fell in love, got married, and then everyone's like 'Eh. We have a new Scott. Like we don't really need to be close with him anymore.' Even though I get it. We have kids."

Kim assured Disick that they would always be close to him. But the latter said he still finds it "a scary thing." "My true advice would just be, like, let's cross that bridge when we get to it," Kim told Disick.

Kourtney is currently dating Younes Bendjima, while Disick is seeing Richie. The latter pair made their romance Instagram official in September. However, rumors recently claimed that the couple's relationship is already heading south.

"[Richie] thought he would be more serious about their relationship and is finding herself to be more frustrated with him as time goes on," a source told People. "Everything everyone has been telling her to look out for, she's now starting to see for herself. It's really upsetting for her, but she is trying to work through it."

Do you think Richie and Disick's romance will work out after his revelation that he is not happy with anybody else after splitting with Kourtney? Drop a comment below.