Fang

The newest book in the Maximum Ride Series: Fang by James Patterson.
There are actually two different covers: The Same one above, and the same one but instead of saying: He's always been there for her, now he may be gone forever. IT says:
Angel Says Fang will be the first to die,
Angel is never wrong

Max and Fang, (Two "Bird Kids) who are now in love, seem to have lost their interest for their flock, and it has been replaced by their own desire for each other, So, as soon as their troubles seem to be over, they are attacked, kicked out of the flock, a six year old has taken the position of leader, but the worst of all: Angel says: Fang will be the first to die, and guess what, Angel has never been wrong..., to top it all off, "Expired Enemies" are after them, as well as a madman who likes needles.
So, chaos erupts.

This book expresses the emotion well. 9 out of 10! If you have the time, Pick up the First book! The Angel Experiment