"I thought I would give it a try and make her more of a priority, but then even when doing that, she was like, 'I don't wanna share you as a boyfriend with Kourtney,'" he shared. "Instead of just wanting to work with it, she literally said, with an ultimatum: 'You have to choose, me or Kourtney.'"
"And I was like, but Kourtney is Kourtney and my kids. It's a unit," Scott explained. "I said, 'How could you even want that for me?' It just became an impossible relationship to keep carrying on with."
"Sometimes it's time just to cut the cord," Kim agreed. "I get it."
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Travis Barker Explains Why His Relationship With Kourtney Kardashian Works
Both Kourtney and Scott have moved on to new relationships since the filming of the season premiere. Scott made things Instagram official with 19-year-old Amelia Hamlin in February, while Kourtney and Travis Barker went public with their relationship in January and have been sharing plenty of PDA in recent months.
However, as Scott said during the KUWTK premiere, no matter what happens in his and Kourtney's love lives, they'll always be there for each other, and for their three kids: Mason, Penelope and Reign.
"I'm never going to give up my relationship with Kourtney and the co-parenting that we have. Nothing in a million years will be worth what we have," he noted. "And I truly believe if the right person were to come along in Kourtney's life or my life, us having children and having this amazing relationship would only be a plus to the outsider."
See more on the upcoming final season of Keeping Up With the Kardashians in the video below.