Sophie Go's Lonely Hearts Club

DNF, more because this wasn't really what i was looking for, rather than a problem with the book. Personally, I would hesitate to call this fantasy, since the single fantastical element - the ability to see a red thread that reacts to relationships - has virtually zero impact on the story. This could be removed from the story entirely and have zero effect (other than removing some odd, and I presume unintentional, faintly phallic imagery when each person's thread reacts to those around them). This is more a light drama about relationships (with some heavier drama related to the protagonist's frankly horrific relationship with their mother). If that's what you're looking for, I think you'll have a better experience with this book than me.