The former couple, who have three children together, broke up over the Fourth of July holiday weekend, sources confirm exclusively to E! News.
"Kourtney has always taken Scott back and been by his side, but now with three kids it has gotten old," says a source. "Kourtney has to do what's best for the kids."
"Scott has been running around saying he's single," adds a source. "Kourtney dumped him after she saw the pics [in Monte Carlo] and he hasn't been home after a month-long party binge."