Kylie Jenner is rumored to have been a no-show at boyfriend Tyga's West Hollywood birthday bash, sparking rumors that the two might again be on the outs.

TMZ reports the "Keeping Up With the Kardashians" reality TV star was nowhere to be found during the "Rack City" rapper's 26th birthday festivities, which ended with him "stomping" out of The Nice Guy venue alone.

In addition, Hollywood Life reports Jenner did not make any mention of her boyfriend that day on her many social media accounts. The apparent freeze out came just hours after the website reported the rapper was planning to propose to his girlfriend at the party.

Days before, Kylie was also known to be publicly pushing sister Kendall Jenner to join her at the bash as a symbol of her support for their relationship. No Jenners or Kardashians were among the many guests. 

Instead, TMZ adds the rapper was left to feast on dinner at The Nice Guy with a bunch of pals and later party at 1 Oak with a guest list that included A$AP Rocky, Wiz Khalifa, Jamie Foxx and Leonardo DiCaprio. 

The couple started dating just over a year ago and have met significant turbulence over that time.

Recently, a transgender woman named Mia Isabella emerged to allege that she had been involved in a long-term relationship with the rapper. Around the same time, a Florida rapper known as Stiches claimed he had been intimate with Jenner.

Jenner's battles with her boyfriend's ex-girlfriend Blac Chyna have also become legendary, with much of the drama playing out on social media. Jenner was recently rumored to be angry with her boyfriend after he went to Chyna for advice about their relationship.

"Kylie thinks Blac's an opportunist and it upsets her that Tyga runs to his ex when they're having problems, telling her everything that's going in their relationship," a source said.