It’s no secret that we are all obsessed with our smart phones and we can’t live without them. “Crush,” stars three main characters, a smart phone, Marissa Luck (HBO’s “The Leftovers”) and Elizabeth “Lissy” Ferra (“Reality Queen,” FX’s “Better Things”). Marissa and Lissy are two best friends who pass the time fantasizing and deciphering text messages from crushes they met online. They spend their time pondering if there is a future with someone they haven’t even met in person.