FANS have been sharing their theories on why Kylie Jenner may have been snubbed from a recent birthday celebration.

Hailey Bieber recently celebrated her 27th birthday in wine country, bringing a group of friends along to Napa Valley, California.

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Fans noticed Kylie Jenner wasn’t in attendance at Hailey Bieber’s 27th birthday celebration in Napa Valley, California over the weekendCredit: Hulu

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The model brought a large group of friends to wine country, including celeb pal Lori Harvey and Kylie’s sister Kendall JennerCredit: Instagram/staskaranikolaou

The model took to Instagram over the weekend with a carousel post, giving fans a glimpse into “the best 48 hours.”

The photos showed her alongside her husband, Justin Bieber, 29, as well as other friends, including The Kardashians star Kendall Jenner, 28, and model Lori Harvey, 26.

While Hailey seemingly enjoyed the celebrations with a large group of friends, some fans noticed that her celebrity pal Kylie Jenner, 26, was not in attendance.

Taking to Reddit, one user wrote: “Why did kylie not celebrate hailey’s birthday? they were in napa valley and kylie was home in LA so im confused why she wasn’t there??

A second chimed in: “I doubt Kylie meshes well or can even handle herself in such a large group of someone else’s friends.

“She’s used to being seen and adored in photos, and probably self aware that she doesn’t live up to the hype.”

“i was also wondering this… hailey was at kylie’s khy launch recently and that seemed like a super small dinner so i assume they are good friends? i wonder why kylie wasnt there,” a third noted.

A fourth said: “She’s probably healing from more work being done.”

“New boyfriend so she forgets about her friends. A tale as old as time,” a fifth theorized about Kylie and her new boyfriend Timothee Chalamet, 27.

Another guessed: “She does have children and just spent a long weekend with Chalomet in NYC, so I would suspect she didn’t want to leave then again for another 48 hour trip.”

BIRTHDAY FITS

One of Hailey’s standout looks in the swipe-through post showed the Rhode Skin founder standing solo in a vineyard.

Hailey was seen wearing an oversized, beige sweater that featured a cable knit design.

The chunky, fleece top was paired with striped, pleather boots that went all the way to the model’s upper thigh.

The daughter of Stephen Baldwin appeared to be pantless as the multicolored boots just barely met the bottom of her sweater, showing off her lean legs.

Another picture showed her in a more casual look, rocking an all-black ensemble consisting of baggy pants and an oversized leather jacket.

Hailey was seen cuddling up next to her husband, despite having been at the center of divorce rumors in recent months.

The two were arm in arm with the Peaches singer wearing a pair of loose-fitting khaki pants and a brown long-sleeve as the two enjoyed the scenic view.

Hailey’s last dynamic look showed her stunning in a strapless red velvet dress that clung to her slim physique.

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Fans theorized Kylie may have been spending time with her children or her new boyfriend Timothee ChalametCredit: Instagram/staskaranikolaou

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Hailey was seen spending the weekend with her husband Justin Bieber despite divorce rumors spreading in recent monthsCredit: Instagram/kendalljenner

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Hailey rocked a variety of stunning looks consisting of a velvet dress and standout accessories while celebrating her special day – but without Kylie presentCredit: Getty