The Fault in Our Stars grabbed me from the first meeting of the Cancer Kids Support Group, where Hazel is forced to go and interact with other teens who are in varying stages of cancer. Hazel herself breathes with the aid of an oxygen tank, thanks to stage 4 Thyroid cancer. And then there's Augustus Waters - gorgeous, former basketball star, who has one leg but is in remission from osteosarcoma.
Hazel and Augustus sparkle like stars together immediately. He introduces her to the Max Mayhem series; she shows him her favorite book, An Imperial Affliction. He calls her beautiful. She finds him also beautiful - terrifyingly so. How can she have a relationship if she is terminal? It's bad enough knowing she will break her parents' hearts one day, let alone a boyfriend's.
However, Augustus is the kind of guy who loves protecting people (maybe because he has so many younger brothers and sisters?) When he plays video games, he loses because he has to rescue the characters.
I'll interrupt myself here to point out the title comes from my favorite quote from Julius Caesar, when Cassius talks Brutus into murdering Caesar Augustus (Augustus - get it?) :