Peace Treaty! Scott & Sofia Dine With Kourtney After She Finally Accepts Their Relationship

Scott Disick and Sofia Richie are going strong — and Kourtney Kardashian is finally starting to accept it! This Monday, the Keeping Up With the Kardashians star met up with the pair to finally put their issues at rest and agree on a peace treaty. Click through RadarOnline.com's gallery to see the bizarre photos and learn more.

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The entire Kardashian-Jenner clan has spent years rooting for Kourtney Kardashian, 39, and Scott Disick, 35, to make their relationship work, but now that Sofia Richie, 20, has entered the picture, that fairytale vision is quickly starting to fade.

This Monday night, Disick and Richie were spotted on a romantic Nobu date, looking smitten as ever after their Australia vacation. But there was someone else with them on their outing: Kourtney Kardashian!

The odd dinner-for-three came moments after a source exclusively told RadarOnline.com that Kourtney was struggling with letting go of her longtime love.

Over a year after the "Lord" and his much-younger girlfriend went public with their love, the insider said, "Kourtney realizes Scott is serious about Sofia and she has to accept it."

"She realizes that Scott is gone now and that Sofia has won his heart and that eats at her because she thinks she can have him at her beck and call," added the insider. "It is clearly no longer the case. He has traded her in for someone 20 years younger."

RadarOnline.com readers know that before Monday's meet-up, Kardashian was very reluctant to welcome Richie into her family — especially since Disick abruptly introduced her to their kids. The young model, however, made it clear she plans to stick around for a very long time — plus, Penelope loves her!