Scott Disick says splitting from Kourtney Kardashian was the ''worst decision'' he ever made.

The 'Keeping Up With The Kardashians' star showed remorse for his actions in a frank chat with Kourtney, her sisters Khloé and Kim Kardashian and their mother Kris Jenner.

In a teaser for the new season of their E! reality show, Kris told the 32-year-old television personality through tears: ''It breaks my heart to see her in pain.''

He replied back: ''It's been a really hard time going from like, having all you guys, to having nobody. I f***ed up. I made the worst decision I could ever make in my life.''

Meanwhile, a pal previously claimed that Scott - who has sons Mason, five, and Reign, nine months and daughter, Penelope, three, with the 36-year-old star - is in a ''bad place''.

They said: ''Scott's in a bad place right now. He's a mess and been on a really bad binge.

''Kris is the main person who put Scott in the situation he is in today. When his parents died, Kris offered no support for him as a family. It was business as usual, so he didn't get to grieve at all.

''Kris and the family also kept him away from his friends, so they weren't ever able to be there for him like they wanted.''