P.S. Waiting for You by the Lake summary: Leo and Alexis lived in the same small town when they were kids and were best buddies. The two loved to spend their summers at the Green Rock Lake summer camp near town. But during the summer when they were eleven, Alexis ended his friendship with Leo over a stupid reason. After that, the two did not see each other again because of their families\' situation. But during the summer when they were eighteen, the two met once again at Green Rock Lake...