Books - gosh her book reviews, well lack off are a turn off, she doesn't know how to articulate herself, so she never describes what the book she has supposedly read (sped through) is about and so she never gives an intelligible opinion about said book. She describes books in the same way she describes an item of clothing or shoes she likes, so it comes off as performative.
Also I think a lot of the stuff she reads goes over a head (which is fine I suppose that's what reading is sometime about right?).
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Linda is defiantly Lizzie's frenemy. I think it will do Lizzy good to be apart from Linda.