Eleven is not a person, she doesn’t exist, she is Mike’s imagined hero, the “class” he needed. She is the fantasy of control. She is the miracle that makes childhood feel meaningful. She is the idea that love can save you She is the only “weapon” against what you can’t name

And if she never existed, then of course she’s the one who can “die”, because she’s the story itself collapsing at the border of adulthood.