Totally cheesy and could have used less "I didn't even notice I was holding my breath" lines and weird electricity metaphors (like, once or twice in a novel I can forgive, but it was EVERY TIME) but I did love how it handled the grey areas of infidelity. 
 Overall, I enjoyed it, and I especially enjoyed the blend of the YA-style romance with adult characters, which I found made the romance a lot more plausible. Yay for well-developed characters!