Goodbye from nowhere
(Book)

Kyle Barker thought his family was happy. When he learns that his mother has been having an affair, and his father has been living with the secret, his reality is altered. Kyle withdraws from life, and the only person he can talk to (well, text to) is his cousin Emily. But Kyle's parents want him to keep this secret from the rest of the family until after what might be their last big summer reunion. Kyle feels the walls of his relationships closing in, and has to decide what his obligations are to everyone he cares for. -- adapted from jacket.