'KUWTK:' Scott Disick Admits It's Difficult To See Kourtney Kardashian With Other Men

Scott Disick recently admitted to Kourtney Kardashian that he feels annoyed when she flirts with other men.

The latest sneak peek of the "Keeping Up with the Kardashians" episode, which dropped Tuesday, Disick told Kardashian, "I feel like it annoys me, like, when you flirt with this lifeguard."

"I'm definitely not flirting with the lifeguard," Kardashian replied. "All right maybe it's just in my head," Disick admitted. "Seeing you around any guy bothers me."

"I feel like you're like a little flirty," he added. The 42-year-old reality TV star said, "I’m not, I promise."

However, the "Flip It Like Disick" star continued, "Then it's my insecurity. ... I feel like that I just don't like seeing you with another guy or a guy it hurt me when you're with somebody else."

The 37-year-old media personality also hinted at Kardashian and her musician boyfriend Travis Barker's pictures on social media.

"Waking up to like looking at pictures of you and like with this guy you were dating," he explained. "It was just unhealthy and it just made me upset and sad, you know what I mean? And now, I wake up with no real problems. I'm, like, care-free in the sense I don't have that, which used to take up a lot of space in my mind all day."

"The big fear is if you start dating again, then it goes back to that and I have to feel, like, a different way again and it's just hard. It sucks," he continued. "I guess now that you're single and I'm single and you haven't been with somebody in a bit, either we figure out creating our own lives together or separately."

Later in the clip, Disick addressed his current situation with Kardashian to the camera in a confessional session.

"It's definitely that Kourtney and I basically spend 90 percent of our lives together, travel together, do everything together, see each other every day and, you know, the only difference is at the end of the night we kind of part ways and go and sleep in separate houses," he said. "This whole limbo state isn't that cool anymore and I surely don't want us both to wake up and be 50 years old and doing the same thing."

Disick and Kardashian share three children together, and even after their split in 2015, they continued to co-parent sons Mason, 11, and Reign, 6, and daughter Penelope, 8.