Has Scott Disick's jealousy become too much for him to handle?

The 33-year-old father of three is struggling with ex Kourtney Kardashian's relationship to 24-year-old model Younes Bendjima — and is reportedly partying to cope.

After getting sober during a month-long stint at Cliffside Malibu in November 2015, the Long Island native is going to clubs and hanging out with the wrong crowd again, a source tells Us Weekly. Yet despite being sober for years, it wasn't enough to reconcile his relationship with Kourtney.

MORE: Meet Ella Ross – Scott Disick's Latest Fling!

On a recent KUWTK episode, Kourtney made it clear that they were never getting back together. Ever.

"I think after everything that's happened here in Costa Rica, Scott knows it's done," Kourtney said in the confessional, "But just saying those words just lets both of us move on." Ouch.

MORE: Scott Disick Reacts To Kourney's Date Night With New Boyfriend

Although Scott has recently been linked to model Ella Ross, he can't seem to get past Kourtney's relationship with Younes, even trying to sabotage their relationship.

An insider told Life & Style, "He even threw a full-on tantrum recently, yelling and screaming at Kourt that Younes isn’t right for her."

"Scott will do anything to sabotage Kourtney’s relationship, including showing up wherever Kourtney and Younes are hanging out together,” the source continued. “He’s also been asking around, trying to get some dirt on Younes so he can bring it back to Kourt and persuade her to dump him."

C'mon, Scott! We were rooting for you.

Learn more about Kourtney and Scott's rocky relationship by scrolling through our gallery!