god, what a bitter portrayal of abuse. as someone who has gone through similar things i very heavily relate-- when you have one person you're relying on who tells you what reality is you really have no choice but to believe them. and what cruelty it is, to use it to trick and manipulate rather than teach as a parent should.
I feel like the excuse for what she has to do to go outside also doubles as a metaphor-- to go against your abuser is to necessarily 'hurt' them. it's for others to seem so shocked you could be so cruel.
and then the pain doesn't stop once you escape