Barbara really wrote a self-fulfilling prophecy for Dee by calling her The Worst. I'm willing to bet that Dee supposedly being terrible as a little kid was mostly just her throwing normal toddler tantrums, getting into kid fights with Dennis (like all siblings do), and just generally being too loud, playful, and quirky to conform to Barbara's misogynistic and classist ideas about being a proper woman.
So now Dee has all this rage and self-loathing because she (for no good reason) was led to believe she's fundamentally rotten, and it compels her to be a wrathful, vindictive, misogynistic, narcissistic asshole just like her mother foretold.













