I did feel upset when professor Snape got killed by the snake at the end of the Harry Potter movie. He is my second favorite character behind Hermione.
Since the first time he came on the stage, Professor Snape had become a controversial character. He always looked strict, distant and cold. For some reason, he disliked Harry Potter. As Harry’s teacher, he treated him badly in Hogwarts. However, near the end of the movie, professor Snape sacrificed himself to save Harry and helped him win the final battle with Lord Voldemort. His courage and kindness deeply impressed everyone who loved the movie, including me. It makes me believe that behind his shield of cold indifference, professor Snape loved Harry as much as his parents did. He protected Harry with all his force, not only because he promised professor Dumbledore to do so, but because deep down inside, he was a great person with the sense of justice and a brave heart.
There was another reason why professor Snape finally chose Harry, rather than Lord Voldemort—He had been in love with Harry’s mother since he was a child and Harry perfectly inherited his mother’s eyes. I remember that just before he died, professor Snape looked deeply into Harry’s eyes. Those beautiful green eyes reminded him of Harry’s mother, the woman he loved forever. What a tragic love story!