Oh, man. I loved everything about this chapter.

Your characterisation of Harry was spectacular: him feeling as if he HAS to be open to Draco now because of what happened between them. And then Draco forcing Harry's hand and making Harry jealous. Oh gosh. Absolutely delish.

My favorite line, though, was when Harry thought the following:

So he gave in to his natural instincts, and felt more like an actor than ever doing so as he stepped up beside the young witch and scowled at her.

That says so much in so few words. Spectacular. :)