The life cycle of a relationship is complicated. No two romantic encounters leave precisely the same mark, and within them are multitudes — euphoria, confusion, infatuation, grief, closure, and eventually healing. Nothing, though, is quite as remarkably memorable as a first relationship (at least, the first real one). Adults who have lived decades often speak of their first love, whether adoringly calling it puppy love or taking note of the lessons they learned because of that initial connection.