Undeclared (Woodlands #1) by Jen Frederick
Read from October 20 to 21, 2013
The plot idea was a little bit farfetched. Seriously? The main characters wrote a letters (meaningless and short) for four years. Then Noah decided he's too fucked up and broke the connection. Grace was heartbroken and devastated, since she pictured her Marine as THE ONE. After two years he wants to win her back.
Besides - it's a good book.