Kourtney Kardashian, Scott Disick Update: Friends Worried that Disick will Fall Apart

Kourtney Kardashian has dumped Scott Disick, her long term boyfriend and baby daddy, after nine years of dating and now, Disick's friends are reportedly concerned about his partying ways.

"There's no real incentive for him to get himself together," a source allegedly close with the 32-year-old told PEOPLE. "When he's gone to rehab or sought treatment for his issues, it has been after an ultimatum: Get treatment or it's over. If it's over, there's no real incentive for him to get himself together."

Disick's friends are also afraid that his substance abuse issues will spiral out of control. Kourtney has always been his rock. Who stood by him through his tough times. This time, however, without her support, his friends believe that his drinking would only get worse.

"Scott insisted that his drinking is under control, that he's not in a spiral, but everyone around him knows the truth," the same source added. "He has been lying to everyone, saying that he's clean and sober ... and he insists that he doesn't have a problem."

Disick has not let the breakup stop him from promoting parties. He uploaded a picture on Instagram inviting people to party with him at 1 Oak in Las Vegas on Friday, July 10. People who commented on the post, however, do not seem impressed at all. In the 13 hours since the picture was uploaded, Disick has received a lot of hateful comments.

 Come party with me this Friday in Vegas @1oaklv

A photo posted by Scott Disick (@letthelordbewithyou) on Jul 7, 2015 at 6:35pm PDT

Some of them read:

"If I saw you I'd kill you." (beyonce.knowles.carter)

"please grow up... you have 3 little kids at home to set an example for, go to rehab & stay there for however long it takes! You NEED help, you're extremely self destructive." (scarlettspics)

"Go home @letthelordbewithyou you're not a teenager anymore dude! Stop trying to cling on to the last bit of youth! It's gone!! You're a dad of three! You're punching with kourt mate! She's an absolute stunner!!! Even after three kids! A real man will snap her up right away if you don't grow some bollocks!!!" (kylielongman)

Kourtney reportedly broke up with Disick over the Fourth of July weekend when she saw pictures of him getting cozy with his former flame, Los Angeles-based stylist, Chloe Bartoli.

"It was becoming a poor environment for the kids to be raised in, and she refused to let that be the case," another source told PEOPLE. "Kourtney is willing to sacrifice her relationship with Scott in order to keep [her kids] safe. Her children are her first priority. She needs to protect herself and her family, so she knows this is the right decision."

Since the breakup, Kourtney has uploaded several shots with her family on her Instagram page.

Kourtney and Disick have not commented on the latest breakup reports. They have three children together, Mason, Penelope and Reign.