What an interesting premise! I was impressed at how this story stayed so angsty throughout. I'm never sure I much enjoy this kind of grim post-Voldemort world, where Harry is off-kilter, hiding out with Snape, while everyone else he knows treats him like a child or a slightly scary freak. But it's very realistic that he could become this weird - he never was very good at keeping a poker face - and that even Hermione and Ron might move on from their school-time friendship.