"Tennov (1979) used the term limerence to refer to a kind of infatuated, all-absorbing passion — the kind of love that Dante felt for Beatrice, or that Juliet and Romeo felt for each other. Tennov argued that an important feature of limerence is that it should be unrequited, or at least unfulfilled. It consists of a state of intense longing for the other person, in which the individual becomes more or less obsessed by that person and spends much of their time fantasising about them."