Scott Disick does not like seeing Kourtney Kardashian with 'another guy'

"I feel like it annoys me, like, when you flirt with this lifeguard," Scott says, to which Kourtney replies, "I'm definitely not flirting with the lifeguard."

Disick then went onto admit that maybe all of it it just going on in his own head. Later for the cameras, the reality star admitted that he gets insecure when he sees the mother of his children with another guy.

"I feel like, I just don't like seeing you with another guy," he later says to Kourtney. "It hurt [sic] me when you're with somebody else and waking up to, like, looking at pictures of you with this guy you were dating. 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."

Disick also shared that he fears that Kourtney will soon find a guy in his life and things will get hard for him again.

"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. 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," said Disick.

Kourtney and Scott split after nine years of dating in 2015. The two share three children together; Mason, 11, and Reign, 6, and daughter Penelope, 8.