Celebrated reality show couple Kourtney Kardashian and Scott Disick have reportedly parted ways, according to E! Online.

The oldest sister in the Kardashian clan apparently broke up with Scott after seeing photos of him cozied up with his ex-girlfriend, Los Angeles stylist Chloe Bartoli, in Monte Carlo. The 32-year-old father of three has presumably fallen off the wagon and has not been home since he began a month-long party binge. Sources have confirmed to E! that Disick has been spotted around town proclaiming that he's single and is hanging with friends who are "not looking out for his best interests." "He's clearly unraveling," another source added. "He was a mess in NYC last month with the drinking and partying and he's been in a downward spiral ever since. He's been in trouble before, but this is on another level."

A source claims Kourtney, 36, is focused on doing "what's best for the kids," especially after having her son, Reign, six months ago. "Kourtney has always taken Scott back and been by his side, but now with three kids it has gotten old."

Kourtney has stuck by Scott's side as he battled an alcohol problem for years. The two celebs became public with their relationship in 2006 and ended things over the holiday weekend.

Source: E! Online