Split rumors hit Scott Disick, 35, and Sofia Richie, 19, as he’s pictured with another girl at Kanye West’s Wyoming party (Photo)

There are rummors that Scott Disick and his 19-year-old girlfriend Sofia Richie, the daughter of music legend, Lionel Richie may have gone their separate ways.

On Thursday night, Scott Disick was pictured cosying up to a mystery blonde at Kanye West‘s album launch party in Wyoming. While his 19-year-old Sofia was posting social media updates from Nobu in Malibu, as she didn’t get to attend the party with him.

In the photo, Scott stood behind the mystery lady with his arms wrapped around the other woman, in a very friendly position.

This comes days after the pair had returned from a romantic bikini break with his three children, Mason, eight, Penelope, five, and Reign, three, who Scott shares with ‘Keeping Up With Kardashians‘ star, Kourtney Kardashian.