Thanks so much for such a thoughtful review. I'm glad you recognized the relational 'counterpoint', the differences between Harry's relationships with the two of them. It's also gratifying to hear that the shift of 'investment' from Draco to Snape was realistic. I did worry about that a bit.
Hope it stands up on the reread. I'm impressed that you read it once, let alone plans for a second. Again, thanks so much for taking time to drop by.