Novels with psycho/obsessive female antagonist

Hey guys

I just finished Maria by Boris Bacic and, now under a book hangover lol. I’m looking for another novel that’s similar. It’s my first book reading into this kind of genre and I loved it – it’s a bit of a psychological thriller, and really dark and unsettling.

Generally though (unsettling and creepy preferred) just looking for books where a male protagonist deals with a crazy female girlfriend / antagonist, or something along those lines where she’s romantically obsessive, crazy and stalkerish – and also very conniving and smart about it.

Thanks!