Upstate.

My absolute favorite book in the whole wide world!

Its called Upstate, by Kalisha Buckhanon.
I first read it as an assignment for English where we had to read a book that had been banned or challeneged but it became more than assignemet as I was captivated by the characters. The book is written in a series of love letters between a troubled boy and his girfriend. It starts out when they're teens and prgogresses along a 10 yr period where their love is put to the challenge.
Its not really long though, it was a quick read to me. Made me cry...real talk.