Pillows: situationship, ambiguous relationships, casual dating, casual relationships, casual romance, complicated relationships, emotional ambiguity, emotional complexity, emotional unavailability, affairs, flowing relationships, friends with benefits, intimate friendships, modern dating, not binding, non-binding relationships, exclusive relationships, unlabeled relationships, non-traditional relationships, open relationships, relationship confusion, relationship gray area, romantic entanglements, romantic limbo, romantic insecurity, situational relationships