Kourtney Kardashian and Scott Disick Relationship Update: Reality Star Dumps Baby Daddy after 9 Years of Dating

Kourtney Kardashian has dumped her long-term boyfriend and baby daddy, Scott Disick, over the Fourth of July weekend. This time around, sources are claiming that the 36-year-old reality TV star is completely done with Disick, 32.

"Kourtney has always taken Scott back and been by his side, but now with three kids it has gotten old," a source told E! News. "Kourtney has to do what's best for the kids...Scott has been running around saying he's single."

The source added, "Kourtney dumped him after she saw the pics [in Monte Carlo] and he hasn't been home after a month-long party binge."

Disick was photographed hanging out with his ex-girlfriend, Chloe Bartoli and the two got very cozy. He has also reportedly been choosing to hang out with his friends over his family. Disick has been notably absent from several family trips.

Ever since Kourtney and Disick started dating in 2006, they have consistently been the subjects of break up rumors. Every time, however, the couple would put up a united front. This time around, Disick's partying ways have finally taken a toll on their relationship. Kourtney, who is focused on how their children will grow up, decided that this time was the final straw.

"She is over it. She's fed up. It's humiliating and disrespectful. How much more is she supposed to take?" a source said.

E! News cited another source, who said, "Scott does not seem to care about what he's doing. He's clearly unraveling. 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."

"He's just making things worse and worse, and what's worse is that he knows that he's making it worse and worse," a source told PEOPLE. "His head knows that he needs to leave, and that every minute that he's there, he's doing more damage to himself and his family, but until he really takes that to heart, he's not going to make a change."

Kourtney and Disick have three children together, Mason, 5, Penelope, 3 and Reign, who was born in December. They have not confirmed their separation.