Los Angeles - Scott Disick's son worried his dad was "gone for the whole wide world".
The 32-year-old star split from long-term partner Kourtney Kardashian - with whom he has kids Mason, five, Penelope, three, and Reign, 11 months - earlier this year and his children are finding the situation tough.
Kourtney's sister, Kim Kardashian West told her mother Kris Jenner than Mason had asked her: "Is dad ever coming home? Is he gone for the whole wide world?"
Though Kourtney insisted she is "so done" with Scott and his wild partying, she vowed he would always be around for the sake of their children.
Speaking on the premiere of the new season of Keeping Up With the Kardashians, she said: "We're trying to be the best that we can to be a team living apart..
"He's going to be in our lives. We have three kids together."
But the 36-year-old beauty admitted there is "nothing" she can do to help Scott, who is currently undergoing treatment in rehab.
She said: "This is what he wants to be doing, so there's nothing I can do at this point. I just want to care for my kids."
And Kourtney is trying her best to embrace the positive side of single life.
She quipped: "Let's look on the bright side. Now I have a huge closet...
"There's actually a lot of bright sides. The closet is number one."