Was on the hunt for some books set up as women's fiction/romcom but twist into thriller. Doesn't have to be domestic thriller, just fit the theme. Hope that isn't too broad of a suggestion, I love unhinged female protagonists if that helps narrow it down!
I'm thinking of They Never Learn by Lauren Layne here, except that's a dual POV with one being centered around a girl entering her first year of college and her slow descent into psychopathy. Would like more books like that.
by Dull_Charity7420