>>102543886Her mom was obsessed with popularity and being liked to the point that she passed down these anxieties onto her daughter, teaching her that the only value you have in the world is the popular kids liking you. So it's okay to tear other people down and hurt them if it means you'll be famous, and therefore popular, and therefore valuable.
Like the episode where Dodie reads off the chart of kids who were found to have lice at school. It doesn't matter that she's ruining these kid's lives and that if the shoe was on the other foot--some other kid was the announcer and she was in class, wishing she could disappear before her name was read--she'd be weeping her weepy dolphin tears over the stress of it all. All that mattered was that it was her "big moment" that would have everyone talking about her. And even a little afraid of her, since if she can get medical records from school and read them off with no consequence, then she could find out lots of things to hurt other students.
Hence why when Ginger started getting noticed by Courtney, Dodie was originally excited--because if Courtney noticed Ginger, it meant Courtney might notice Dodie, and then Dodie has worth. But then when Ginger became popular in her own right, not in the same sense as Courtney but in the sense that she got to go to that art school and was speaking at assemblies and such, suddenly Dodie became a lot more possessive and freakish about Ginger, especially if Ginger was paying attention to people other than Dodie or cared about people other than Dodie. That's why she expects Ginger to cancel Darren's birthday party when she can't go, because Ginger is supposed to value Dodie the most in the world--more than Darren, more than the party guests who were invited, etc.
She seems like the type of person who, 3 years after graduating high school, is making passive aggressive social media posts any time she finds out Ginger or Macie went somewhere without her.