Scott Disick was interestingly without Sofia Richie at Kanye's Thursday night's album release party, but he was more than friendly with a mystery chick ... and he was telling people he and Sofia are history.
Disick -- who many at the event say appeared wasted -- had his arms wrapped around a dirty blonde, green-eyed girl while Kanye premiered his new album. We're told Disick and the chick were flirty and touching each other during at least two of Kanye's songs.
Scott showed up the Wyoming album release party with a few friends and security. Our sources say he was rarely without a drink in hand and was, at one point, overheard saying he was single.
19-year-old Richie posted from Nobu in Malibu, some 1,000 miles away from Kanye's party as it was happening.
The possible sudden split seems surprising given Richie was just recently on vacation with Scott.
Kanye West premiered his latest album, "Ye," to a couple hundred lucky fans by a campfire Thursday night in Wyoming ... and his lyrics ranged from thoughts of suicide, his wife Kim Kardashian West, and success.
Kanye's opening track featured verses discussing thoughts of suicide and murder. Fans hung on every word during the solemn track. He played all 7 songs from the new project on repeat while other celebs, including, Kim, Scott Disick, Pusha T, 2 Chainz, Kid Cudi, Desiigner, Nas, Big Sean, former manager Scooter Braun, Dame Dash and Chris Rockhuddled around and sang along with the rapper.
Ye's other tracks included a song which mentioned his wife, Kim Kardashian West, calling the rapper and shouting ... Ye's lyrics, "Wifey call say we could lose it all ... had to calm her down. I say she could leave me now or not at all." Many in attendance thought Kanye was referring to the backlash from his interview on "TMZ Live."
Those in attendance were treated to an extremely up close and personal listening experience with the rapper before making the trek back to Jackson Hole.