The Marvellous Feeling known as Love

There's only so much bad luck a person can have, right? Wrong - Alex gets thrust into a game where she is forced to kill 23 other kids just to stay alive, only to find that her perfect match (love of her life) is in the games with her but that they can't be together because of said games. Did I mention that her 'brother' was in the games too? And that he hates Marvel's guts?