Photo: Steve Granitz/WireImage

Kylie Jenner and Travis Scott attend the 61st Annual GRAMMY Awards at Staples Center on February 10, 2019 in Los Angeles, California

Kylie JennerandTravis Scott’s on-and-off relationship has hit the off switch once more.

A source confirms to PEOPLE that the 25-year-old Kylie Cosmetics mogul “is not with Travis right now.”

“She spent the holidays in Aspen with her family,” the source shares. “They have split several times in the past and this is probably not the end of their relationship.”

Jenner is in a very different place from the 31-year-old “Sicko Mode” rapper, the source adds.

“Kylie is very focused on her kids and her business. She is not a big partier. Travis is the opposite. He likes to party. They definitely have different focuses. They always did.”

Kevin Mazur/Getty

Travis Scott (L) and Kylie Jenner pose during the Pre-GRAMMY Gala and GRAMMY Salute to Industry Icons Honoring Clarence Avant at The Beverly Hilton Hotel on February 9, 2019 in Beverly Hills, California

It has “never been an easy relationship,” says the insider, who notes Jenner “flips out” any time cheating rumors emerged.

“There is a reason that they never got married,” the insider adds. “It’s always been very up and down. And they have never even lived together. They have always had separate homes.”

Us Weeklywas the first to reportthe breakup news.

RELATED VIDEO:Kris JennerSays DaughterKylie Jenneris Not Married to Boyfriend Travis Scott- Despite Calling Him Her ‘Husband’

Jenner and Scott have dated on and off since 2017. They welcomed daughterStormi Webster, now 4, in February 2018 anda sonin February 2022.

Even during their time apart, Jenner and Scott have strived to maintain a good friendship and co-parenting relationship for the sake of their children.

“Travis and I are on great terms and our main focus right now is Stormi,” she wrote at the time. “Our friendship and our daughter is priority.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

Previously, Scottdescribed the pair’s parenting styleas “a more natural vibe.”

“Like, more self-discipline,” he toldCR Menin 2021. “Like, ‘Okay, you know you got to go to bed at 9, are you going to stay up till 11 or are you going to go to sleep now?’ And it’s so cool [to hear her say], ‘I’m going to sleep ya’ll!'”

source: people.com