Ever since Kylie Jenner turned 18, she and her boyfriend Tyga have been very open about their relationship. The two often appear on each other's social media pages and are seen spending a lot of time together, so it seems a little strange that Kylie was absent from the rapper's 26th birthday bash Thursday night.

Tyga started his night off at The Nice Guy restaurant in West Hollywood, and then he and his famous friends, including A$AP Rocky, Wiz Khalifa, Jamie Foxx and Leonardo DiCaprio, all headed to 1 OAK to really celebrate, according to TMZ. Kylie is typically one to post everything she does on social media, especially birthday messages, but a birthday wish to her boyfriend was nowhere to be found on any of her accounts. 

Kylie and her sister Kendall had just been in Australia promoting their new clothing like and were apparently flying during his festivities, according to People. Kylie did post a photo of her three dogs yesterday, writing "coming home to you guys," so it is still unclear if she had already arrived back in L.A. or was still on her way.

Rumors started going around prior to Tyga's big bash that he was planning on proposing to Kylie in front of all their friends. "Tyga's turning 26 tomorrow and it's going to be one hell of a night at 1Oak in L.A.," a source told Hollywood Life. "And while that's going to be a blast of a night for him, he'd much rather be putting a ring on Kylie's finger. He's getting older and with age comes wisdom and he knows Kylie's the one for him. He knows he wants to spend the rest of his life with her."

While Tyga seems confident that Kylie is the one, she may still be a little young to be thinking about marriage, and this has everyone wondering if this is why she wasn't at his party. "He loves her tremendously but he doesn't want to force the issue," the source added. "He knows she's not ready and they already have a good thing going and he doesn't want to mess that up. Everyone will be there tomorrow to help bring in his 26th but he wants to do something special for Kylie and make the night about her, too. He's even thinking of getting her a little special promise ring-just to let her know that the big question is on his mind."