Snape had been forced to do many things in his life he regretted, to the point where he thought ending his life would be the easiest way to deal with the problem. If the Granger girl had any suicidal impulses, she did well at hiding them, for he was certain she had not seemed to lean in that direction. Instead, she was curling in on herself, becoming an emotional cripple in the same way he had been doing all of his life. It was okay for an old man like him to be that way, but for a young woman with so much promise, he did not want that to be her fate.