How Scott Disick Is Affected By Kourtney Kardashian, Travis Barker’s ‘Serious’ Relationship: Report

Scott Disick was fine with ex Kourtney Kardashian having relationships with other people before, but now he has found himself struggling with the latter’s “serious” romance with Travis Barker, a report says.

The Talentless designer, 37, is having a hard time accepting the 42-year-old reality star’s relationship with the 45-year-old musician, an unnamed source exclusively told People Wednesday.

Though Disick also “struggled” and got “jealous” of Kardashian’s other relationships in the past, it’s very different for him now that the “Keeping Up With the Kardashians” star is getting more serious with the Blink-182 drummer, the insider added.

“With Travis, he is struggling even more. Before Travis, Kourtney's relationships were never serious. It was more like flings. With Travis, it's different,” the source was quoted as saying by the media outlet.

Disick was allegedly shocked when he found out that the two started dating, and he was even more surprised that things between them escalated “very quickly.” Moreover, he is not that pleased that his children with Kardashian — Mason, 11, Penelope, 8, and Reign, 6 — also adore Barker and that they seem like a family now, the report said.

“His kids love Travis, which is also hard for Scott. Kourtney and Travis are like a family with the kids. Scott is having a hard time with this situation,” the source said.

The television personality also appeared to regret what happened to his relationship with Kardashian as he was hoping for them to end up together in the long run.

“He knows that he messed up their relationship and let her down. For a long time, he still hoped that they would end up back together,” the source added.

A different insider previously told Entertainment Tonight that Disick was trying his best to adjust after Kardashian and Barker got together. Even though he has remained very close with his ex, “things between them have changed a bit” considering that Kardashian is “truly so happy” with her new love life, the source said.

Meanwhile, Disick’s thoughts on Kardashian’s dating life will be tackled in the next episode of the final season of “KUWTK.” In a sneak peek, Disick comes clean about feeling annoyed whenever he sees Kardashian flirting with other guys even though they are no longer together.

“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,” he says in the teaser clip after confronting Kardashian for flirting with a lifeguard. “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.”