Oh wow! What an amazing chapter! I love Snape. And it's interesting to see how the canon events are slowly changing.

I find it hard to believe that Dumbledore wouldn't realize that Harry would act differently enough that the people who really know him could tell.

Hmm... I can't wait to see how Harry deals with Draco's questions so soon after Snape's. I wonder if he even realizes how much like Snape he is that he pushes people away harshly instead of allowing them to find out something that could hurt him.