"He's in a black hole," the source says

By Michele Corriston
Updated July 20, 2015 02:15 PM
Credit: Seth Browarnik/Startraks

Though Scott Disick canceled club appearances in the wake of his split from Kourtney Kardashian, sources say he’s been partying in his Beverly Hills bachelor pad.

Disick, 32, moved into the house – which one source close to him tells PEOPLE he originally bought as an investment property to flip – two weeks ago, when his assistants were photographed moving his belongings out of the mansion he shared with Kardashian, 36, and their three children.

“He’s in a black hole,” the source says. “It’s a whole lot of darkness where he’s at right now. He’s spiraling out of control.”

A group of women were spotted entering his home for a bash Thursday.

“Scott was partying and looked a mess,” a guest tells PEOPLE.

Meanwhile, Kardashian is focused on her family. She’s been spending time with kids Mason, 5, Penelope, 3, and Reign, 7 months, along with sisters Kim Kardashian West and Khloé Kardashian while shooting Keeping Up with the Kardashians.

“Kourtney again spent a lot of time with Khloé and Kim. The girls filmed at Hugo’s in Agoura Hills,” a source said of the reality stars’ outing Tuesday. “She seemed happy to be with her sisters.”