I read The Cipher by Kathe Koja

A nasty, roiling rumination about "what if your girlfriend was obsessed with a weird gross hole" that is kind of awesome in itself. This novel has a really unique voice and also produces encounters with a lot of weird characters, so I really enjoyed it on that level, as someone whose most common complaint about writing is flat, predictable characters by "type." Maybe it's a bit crass to analogize something that is primarily concerned with its own weird vision, especially in a genre like horror where overly-blunt metaphor seems to be the commercial taste (maybe moreso in films), but to me it also felt like a convincing reflection of how depression affects your ability to relate to other people, creates a cloud of self-disgust, but at the same time can become this perversely affirming thing you're the expert on... but still, also, weird gross hole!