And when Kim and Khloe ask Scott if he's "getting over Kourtney," he said that's never going to happen.
"It's tough sometimes. I feel like I would never be over her," he explains. "She's the love of my life, but I try to do everything to be there for her and there's literally no appreciation for anything ever."
The clip then cuts to a solo interview of Scott who exclaims, "I just hope that one day she understands that I would never wanna be with anybody but her."
ET previously reported that Kourtney and Scott are not together, but keep a close relationship for their kids, sons Mason, 7, and Reign, 2, and daughter Penelope, 4.
As we patiently wait for the next episode of Keeping Up With the Kardashians to air Sunday at 9 p.m. ET on E!, press play on the video below to watch Kourtney confront Scott during the season 13 premiere.