This is a dark teen novel. I read it in about 2007 and I think it was recently published. I believe the cover of the book was white (kind of a woodsy / snowy feel) with the title in black text.

The story was a very sad one.Three teens (the older two were a couple and there was a younger boy, who was the narrator) ran away and were homeless, living for at least part of the book in the woods (in some makeshift space — I believe an old van). They were cold and hungry and the girl got sick first. I believe she had sores or something on her body. In one tragic scene in particular, she’s asking the older boy (her boyfriend) to have sex with her and the narrator says the older boy did it because he really loved her. Eventually, of course, the girl died and I believe the older boy died as well a little later on.

As I said the younger boy was the narrator and there was a lot of dialect used. Apostrophes and such (“you want somethin’?”) which added a lot of character to the narration.

I believe it got good reviews / accolades, but was very sad and dark. You really saw how kids could fall through the cracks in the system and how terrible it was for kids trying to make their own way without assets or support.