As much as she hated being alone,
the bubble girl wanted everyone else, especially athletes (the people she most likely wanted to be like or most like as a kid besides a military or royalty/authority figure, someone with power/influence and riches) to live in an enclosed bubble,
isolated from the rest of the world, and especially reality (which she saw as negative based on her own experience despite claims of being a
boundless optimist, mostly due to people rejecting her/not paying her any mind or respect). She was always encouraging people to isolate and give away/surrender anything or anyone they loved or held sacred, mostly because she wanted to see what it was like to hold something sacred for once (which would be a foreign experience for her, perhaps it would be fun or exciting, like visiting another town/state/country or learning a local language or dialect and trying to earn her local stripes there for the sake of locking it down then walking/trampling over the rights of everybody there
in the end, and hoping nobody would see right through her in the process).