What Y/N Did To Us

What is Y/N was an Eldritch horror manipulating the free will of the people and the Head Cheerleader was trying to free them?
This is the question that sparked this story, a story about eldritch horror Britney Eigllaq, who lives a mostly normal human life.
Until her cousin, Ygn-Niquggosa Osh'lakegot, arrives.
All of a sudden, happy couples are being torn apart, the boy band polycule that just got their big start is failing because their fighting over her.
Britney is fighting back. But it's kind of hard when everyone either thinks this is normal,or physically incapable of coming near her.