There's a whole TikTok genre where people do piss takes of influencers behaving "kooky" and "oblivious" to conventionally girly things like makeup, for clout.
Ultimate pick me behaviour.
On the food binges and poor diet, I think she has a compulsion to share her bad diet choices so she can play it off in a jokey way to her audience, and make herself feel better. Bingeing on pizza and junk alone is grim, bingeing while posting on Instagram and getting validation as being a "fitness" person who "doesn't restrict themselves" must balance out any negative emotions she might feel about the junk she eats.
I'm sure for every comment here about how the
duck could you be eating pizza or McDonald's again, she's probably getting a few "
" or "
" reactions on her stories.
Constant seeking of validation with this one, even if she's seeking validation on completely the wrong things.