if I understand you, you also agree that what Elaine says is not credible, it's not necessarily that the real conditions are so terrible, but that's not it. by the way, later on she talks about other things she told him and that she claims are true, but not about this one
I only used the term "confession" because it was the one
Machete used, we'll have to talk about evidence given involuntarily.
But I don't understand proof of what, "Dizzy" is too generic a nickname, it's as if MC's father had always called her "silly". so whether she really is or not (I don't think she's been faking since high school, it's a balance between self-defence and not too much brilliance) doesn't change anything. her friends Katie and Debbie, who are the characters who know her the most, actually consider her "Dizzy".