The relationship may now be turning sour.
As reported by Inquisitr, Scott Disick's young girlfriend, Sofia Richie, is on the verge of ending their romance.
Richie, daughter of iconic crooner, Lionel Richie, is reportedly not too happy with Scott's lasting obsession with his ex, Kourtney Kardashian.
"A lot of their fight stems from his ongoing obsession with Kourtney, but they also argue over the way he treats Sofia, which is pretty crappy most of the time," Inquisitr quoted an anonymous source as saying.
The source added that the 34-year-old playboy doesn't seem to be making an effort for the relationship to work out.
Like Scott, Kourtney is also enjoying romance with a much-younger boyfriend, model and boxer Younes Bendjima.
Scott and Kourtney had been in a relationship for nine years. They share three chidlren together.
According to Inquisitr, Scott can't get over the fact that Kourtney has moved on with a new man.
The challenges Scott and Kourtney had faced as a couple were documented by the popular reality series.
Kourtney began dating Scottt in 2006. They had an on-again, off-again relationship all throughout the filming of the reality show, Keeping Up With The Kardashians.
Scott and Sofia were first spotted together during the Cannes Film Festival in 2017.
Because Scott has been reputed as a playboy, fans assumed that it was just another fling.
But the couple appeared to be more and more in love in their outings.
Sofia is the only woman that Scott dated who appeared on his social media posts. Some took this as a sign that the pair are serious about their relationship.
"Sofia was so crazy in love with Scott when they first go together," an insider said, as quoted by Inquisitr.
"But thankfully - fingers crosses - she seems to be cooling on him, finally."