What happens when you find a lost phone and begin reading the steamy exchanges between two strangers?

At first you are looking to see who the phone belongs to, but you get drawn in to reading their story and development of their relationship. 

You feel awkward, almost dirty and invading their privacy...but you can't stop reading.

Suddenly you find yourself deep into their dysfunctional, loving & erotic turmoil of a relationship. Their exchanges draw you in. You feel confused, betrayed, happy, sad and bewildered. The bedroom room scenes have moved way beyond any resemblance of just a friendship. How can this relationship possibly last? Is it really real to begin with in the first place? You find yourself excited, turned on, angry at them both, laughing, crying, hopeful, yet in despair. How can this happen?