Kourtney Kardashian revealed her heartbreak after son Mason decided to snub a family holiday to Australia in a recent episode of The Kardashians. Her 14-year-old decided to stay with dad Scott Disick , instead of joining the getaway with her new husband Travis Barker. Kourtney told cameras the teen's decision made her "really sad", with an insider now delving into more detail about a reported 'family rift'.

Sources say Scott fears his ex will 'create a deeper divide' with their shared kids, Mason, Penelope, 11, and Reign, nine, by cutting him out of family holidays. "Scott knows that Mason didn't want to go on vacation with his mom because of Travis," they claimed. "Before Travis came along, Scott and Kourtney were vacationing together with the kids - not as a couple, but as friends who were both dedicated to their kids," the insider told MailOnline .

"This is obviously not going to happen again and Scott thinks that Travis should not have a problem with family vacations if he was comfortable in his marriage. "Heck, he could even come if he wanted to. Instead of doing co-parenting the way that they used to, Scott believes that she is creating a deeper divide between herself and her kids with Scott.

Mason is a classic example of this. He lives with his dad and Scott would gladly let any of his children live with him. It is a much more stable environment," they added.

The Mirror has contacted Kourtney, Travis and Scott's representatives for comment. Despite Mason's decision, Ko.