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Kourtney Kardashian and Scott Disick ended their romance over the Fourth of July holiday weekend, sources confirm to E! News. The breakup news came days after Scott was spotted cozying up to his ex-girlfriend Chloe Bartoli in Monte Carlo beach.

"Kourtney has always taken Scott back and been by his side, but now with three kids it has gotten old," a source tells the site, "Kourtney has to do what's best for the kids." Another source adds, "Scott has been running around saying he's single. Kourtney dumped him after she saw the pics [in Monte Carlo] and he hasn't been home after a month-long party binge."

A third source claims that Scott has been spending an increasing amount of time with friends who "are not good influence" on him and "not looking out for his best interests."

An insider tells Us Weekly that Kourtney and Scott will reconcile for their children and their show "Keeping Up with the Kardashians". The insider shares, "When he's sober he's actually a great dad. This was an escape for him, a way out. Kourtney is flipping out and going crazy and says she's done with him, but they've been through this before. He just hasn't publicly embarrassed her like this and to this level. She says it's over, but I know they will end up getting back together for the kids and the show."

Kourtney, who spent the Fourth of July without Scott, hasn't commented on the report yet.

Previous report said Kourtney kicked Scott out of their house before he went for a fun-filled getaway in St. Tropez on June 30. During the vacation, the father of Mason, Penelope and Reign Disick was seen getting close with three different women.