Conversation so far:
What was Drusilla's personality like in Buffy the Vampire Slayer?
Drusilla's madness is exhibited in her often-strange dialogue
What strange dialogue would Buffy the Vampire Slayer's Drusilla use?
Drusilla's madness is exhibited in her often-strange dialogue, which is peppered with non sequiturs like Spike, do you love my insides? All the parts you can't see?“
What did Drusilla look like in Buffy the Vampire Slayer?
Drusilla's costumes were initially intended to be a cross between a Victorian period look and the Kate Moss heroin chic fashion look, says actress Juliet Landau.
What was Buffy the Vampire Slayer's Drusilla's best qualities?

Question: What were her worst traits?
Self-contained rewrite: What were Buffy the Vampire Slayer's Drusilla's worst traits?