Lo's Diary - No Change in tone - What was Pera thinking?

I'm re-reading Pia Pera's novel Lo's Diary a kind of sidequel to Nabokov's Lolita only from Lolita's pov. It was written back in the 90s and she takes it more from the angle of a mother's hatred for her daughter and also incorporates some riot-grrl feminist vibes into the text - Emily Prager did a much better job of this with her Lolita-take book - Roger Fishbite. But it is an interesting read.
I'll do a longer post but for now I'm just stunned that Pera took 90 pages to set up Lolita's life prior to meeting Humbert only to have him enter, takeover and this realization isn't shaking up Lolita. She's as acerbic before she met him as his complete takeover of her life.

Huge mistake.
What's your thoughts? Should major events shake up the mc even if they're a bit twisted or should you maybe tone down the twisted side of your character so you can have them appear shook? I feel like Pera is doing everything she can to have Lolita avoid a victim label.