She was my unicorn , as Alexa would say - the perfect one you would have been happy forever with , but could never have . And when I realized that it was never going to work out like we ... I had dreamed it would , I was crushed .

Question: What is his definition of a unicorn ?
Answer: Something that was perfect , but could n't be possessed .None of the above choices .Alexa was definately his definition of a perfect unicorn .A dream that would make you happy forever .