Disobedience, by Jane Hamilton, has as its hero, a teenager by the name of Henry Shaw, who in the course of being his family's "computer expert", finds, and becomes obsessed by, evidence of an affair his mother is having. Instead of the daily paper, Henry logs into his mother's account to read of the progress of her affair, and the gyrations he goes through emotionally are the stuff that the very best novels are made of. It's been several years since I read it the first time; this second reading reminds me just how much I love words, and the way they can describe a multitude of emotions. In spite of being in acute distress, Henry makes me laugh over and over again, making me love his character, trying so earnestly to navigate the choppy waters of Love, both his own and his mother's, and observing his family's strengths and weaknesses as only a most perceptive, but confused teenager can do.
A very good antidote to holiday/family stress!