Rob Kardashianapparently is not seeing eye-to-eye withBlac Chynaon how she’s raising their 3-year-old daughter,Dream.
Rob reportedlyfiled for primary custodyof Dream on Tuesday, and a source close to the Kardashian family tells PEOPLE that the former reality star is concerned about his ex’s parenting techniques.
“Chyna has never been a model mom,” the source claims. “Rob and the family always had issues with her and how she is parenting Dream. But as Dream is growing up, it’s becoming more clear that there needs to be huge changes in Chyna’s behavior and how she parents Dream.”
“Dream is a very sweet girl, and everyone loves her,” the source adds. “She spends a lot of time with her cousins.” Based on those interactions, the source says, some of the Kardashians have concluded that “Chyna is not a good role model to Dream.”
Gabriel Olsen/WireImage; Phillip Faraone/WireImage

The source also says that Rob, 32, and Chyna, née Angela Renée White, “are not on the same page when it comes to parenting,” which the source believes is “very confusing to Dream.”
“Rob has concerns about Chyna’s partying, too. This is not anything new. It was only a year ago that she took off for Hawaii when she was supposed to spend time with Dream,” the source adds, referencing her January 2019 trip to Honolulu. According to TMZ,reportedly was supposed to have custodyof her daughter at the time but instead left for vacation without telling Rob. Police were called to her hotel suite over an alleged fight between Chyna and then-boyfriend Kid Buu.
“Chyna’s priorities are often not the best situation for Dream,” the source continues. “Rob wants Dream to spend time with her mom, but right now, it’s very obvious that the environment that Rob and his family can offer Dream, is the best.”
Reps for Chyna and Rob did not respond to PEOPLE’s request for comment.
On Tuesday,TMZ reported that it had obtaineda sealed court filing in which Rob alleged that Chyna, 31, is constantly hosting parties at her home while Dream is present. TMZ also reported he alleged that Chyna “snorts cocaine,” is always drunk and that she even spends “$600 on alcohol” daily.
PEOPLE has not independently reviewed the alleged court filings, and a representative for Chyna has not responded to PEOPLE’s request for comment.
Dream.

According to the outlet, in the sealed court papers, Rob accuses Chyna of being violent, citing one occasion where she allegedly threw “sharp objects” at her hairdresser.
Rob also claims that Chyna’s alleged partying ways have affected Dream’s behavior, as the child now allegedly uses foul language and is violent with other children, the website reports. Rob’s sisterKhloé Kardashianalso reportedly made a statement in the filing, claiming that Dream has been “decidedly more aggressive” lately and says she doesn’t want to go home to Chyna, TMZ reported.
Rob’s filing comes a few months after Chyna revealed that she and the reality star wereon good termsand working together to co-parent Dream.
“I just feel like having a good relationship with the other parent and coparenting is a healthy type of thing,” shetoldEntertainment Tonight. “It’s something that a lot of people need to practice.”
Robtweeted in February2019 that the dust had settled, and the two were on good terms.
“Angela and I are both actively co-parenting and there are no pending or active custody cases,” he wrote.
RELATED VIDEO: Blac Chyna Says She andRob KardashianHave ‘No Animosity’ Over Co-Parenting 2½-Year-Old Dream
The former coupleagreed to joint custodyin September 2017 following a whirlwind romance and failed engagement that culminated with both alleging abuse in separate lawsuits.
Rob Kardashian and Blac Chyna.

However, in June, tension began brewing between the exes after Chynacalled out Robfor allegedly preventing Dream from appearing on her showThe Real Blac Chyna.
Chyna shared a lengthy statement on social media afterTMZ reportedthat Rob and his lawyer Marty Singer told her in a letter that Dream could not appear onThe Real Blac Chynawithout Rob’s consent.
“As Executive Producer of my show, It is very unfortunate that Rob could not simply have an adult conversation with me ‘the mother of his child,’Dream Kardashianappearing on my show ‘The Real Blac Chyna,’” wrote Chyna, who also shares 6-year-old son King Cairo with exTyga.
“Had Rob contacted me directly rather than through his attorney Marty Singer, Rob would have learned about Dream participation in the show,” she continued, adding that she “would never allow” Dream to be “subjected to long hours on the set.”
source: people.com