The bitter animosity between Kim Kardashian and Kourtney Kardashian erupted during the latter’s wedding to Travis Barker.

According to insiders close to the Deux Moi podcast, the Blink 182 drummer has been dealing with some personal troubles, leaving Kourtney with little alternative except to isolate herself from her family.

However, the founder of Skims does not agree with her sister’s decision, and their friendship has recently been strained.

“Travis is going through some things right now that he is keeping private between him and Kourtney. This keeps them more isolated from the family and is part of the cause of the rift between Kourtney and Kim,” an insider revealed.

“The conflict is real, it’s not just for the show. Things have been s***y between Kim and Kourtney for a while,” the person continued.

According to recent rumors, the Kardashian-Jenner family discontinued their Christmas card tradition this year due to the ongoing feud between the two famous television celebrities.

Notably, Travis had made some disrespectful remarks about his now sister-in-law in his memoir, which enraged Kim.

In his memoir Can I Say: Living Large, Cheating Death, and Drums, Drums, Drums, Kanye West’s ex was described as “eye candy” and “f****** hot.”

“Kim found it creepy that Travis wrote about her in his book and she didn’t approve when he and Kourt got close,” a source close to Life & Style said.

An insider also said that Kim was vehemently opposed to Kourtney’s decision to marry the artist.