Inset of A$AP Rocky is archive

Is Kylie Jenner moving on with another rapper after splitting from Tyga? It certainly seems that way!

Kylie, 18, partied at Hyde in West Hollywood until 2am on Saturday, and after hanging with Justin Bieber and pal A$AP Rocky, the starlet and A$AP left in the same SUV together. Who knows if they're actually hooking up, but they've been friends for a while, and as far as we're concerned, he's an upgrade over T-Raww!

Neither Kylie nor Tyga have released a statement on their split, but they have posted some rather cryptic messages about it -- and she totally bailed on Tyga's birthday party on Thursday at The Nice Guy. No one else in the Kardashian-Jenner household attended, nor did they wish the rapper a happy birthday on social media.

Kylie posted a Snapchat video where she can be seen mouthing the words, “I wanna know how we became so distant, girl,” and a few hours later she posted photo of her face superimposed on sister Kendall’s, with the caption, “other half.”

So what happened? Rumor has it Kylie was still mad about Tyga's affair with a transsexual model, but it seems like there may have been other girls. A source tells People that Tyga "broke her trust," adding, "She's caught him lying and talking to other girls behind her back before, and this was the last straw." The insider added that Kylie "feels super betrayed and is just so pissed off, damaged and hurt about it. She plans to erase him from her memory and act like he never even existed in the first place."

The pair had been dating for over a year, and though Tyga essentially confirmed they were dating in March, it wasn't until August, when Jenner turned 18, that the couple made it official.