"I don't know who Kylie Jenner is," she admitted, adding that she doesn't usually talk on social media because it makes her "vulnerable." She also included the hashtag #WhoIsKylieJenner.
Kylie went on to communicate with her fans over Twitter and posted a gif of herself crying, with the caption: "This is literally me right now with all your snaps @KylieJenner haha #whoiskyliejenner."
The Lip Kit creator also answered questions over Snapchat posed by her older sister, Khloe Kardashian. When asked how she would describe herself, the Keeping Up With the Kardashians star said she is "sensitive, weird and loves really hard."
In addition, the youngest Jenner sister let fans in on her likes, dislikes and fears. Kylie confessed that she gets nervous ordering her own soup because she doesn't like talking to strangers over the phone. She also admitted to being a fan of Disney's Camp Rock movie and loving BBQ chips.
She did not, however, like her mother's plates of lettuce in the refrigerator.
All in all, Kylie's spirits seemed high during her Snapchat session, though she did admit that she might not leave her childhood room for a while.
Neither Kylie nor Tyga, 26, have confirmed their alleged breakup, but ET has reached out to the rapper's rep. The two were thought to have started dating in 2014, when Kylie was only 17 years old, but did not confirm their relationship until she turned 18 in August. The rapper and reality star were both at this year's Met Gala in New York City, but did not pose together. An ET eyewitness also saw Tyga entering his hotel room alone following the gala.
Meanwhile, Tyga's ex Blac Chyna might have taken a dig at Kylie with her new line of Chymojis. One of the avatars appears to show Chyna -- who is pregnant with Rob Kardashian's child -- smacking Kylie. See for yourself: