"I guess you couldn't hang with the cool kids."
Star Guardian Ahri would say that to Star Guardian Ezreal if she kills him in-game. Now also consider outside of SG Ezreal, Star Guardian is currently an all-female line-up.
So, not only is SG Ahri shallow to boot in her personality as a glorified "pretty/popular girl" cliche, she's more or less a bully (think school and workplace bully in terms of many of the lines she says including the featured line), and is also mean to the opposite gender for no good reason.
Dayam, Rito.
That's triggering some of our PTSD here mmmmmmmmmmmmmmmmmmmm.
But seriously though, with a personality like that, I'm not sure if Rito is trying to make us like her, or hate her lol.