Her first epiphany was in the bathroom, when she caught her naked reflection in the mirror: There is someone else inside of me.
Her second one came shortly afterwards; she forgot which one of the marmalades in the fridge was hers. She used to know: I am in this body, so is someone else. There might be more.
The third came when she stuttered out the first name that came to mind (after a two-second pause) when she introduced herself at the interview. Amanda: I am inside of someone else’s me.
Bit by bit by bit, she realized herself away.