A week after the end of her two year relationship with Tyga, Kylie Jenner is (probably) already dating 22-year-old Canadian rapper PartyNextDoor (whose real name is Jahron Brathwaite), because that's the life of a beautiful, rich, famous 18-year-old. A source told the Sun:

Their relationship started quite suddenly but it just feels right. They are mad for each other. She doesn’t know why she wasted time with Tyga. Kylie’s family found the eight-year age gap with Tyga a bit weird, especially as they got together before she turned 18 last year. PartyNextDoor is much better as he’s only four years older than her.