The "yes" votes are due to sexual and emotional abuse of a minor/later young adult. It's horrific and hard to read about but if your trigger is specifically "torture" as in violent prisoner interrogations or sadistic serial-killer stuff, there is nothing like that in this novel.
[SPOILERS] The main character's father dies, mentioned fairly early on. She is seeing a therapist to deal with the loss but it isn't a huge focus of the book. Her mother doesn't die.
[SPOILER] The main character maintains an on-again, off-again relationship with her abuser. "Cheating" is arguably a theme as she does become jealous and upset when he targets other young girls for abuse. Hard to really call it "cheating" as none of it takes place within a truly consensual relationship.
At one point Vanessa is so messed up mentally she starts depriving herself of sleep and food so as to have to focus on the physical pain rather than the mental pain.
It is never outrightly stated but hinted at several times that the reason the abuser chose to have a vasectomy at a young age is that he know if he did have a daughter he would abuse her.
The whole book is dark and upsetting but it actually ends on a very slightly hopeful note, suggesting that the main character may begin to be able to heal from her years of abuse and PTSD