I've never been a Harry/Hermione shipper, especially since HBP came out last year. However, I've been riveted to your story since I began reading it and have decided to see it to its end despite the fact that the pairing is not following canon.
I found your description of the shopping trip amusing, especially Harry's embarrassment over finding himself in the underwear department having to answer that rather personal question. That made me smile; however I also wanted to know how Harry felt about being made to try on all that clothing knowing it was all for him.
Poor Hedwig. I can only imagine what's happened to her and you left us hanging by not describing her condition or how she's reacted to seeing Harry again.
Finally, I'm wondering why Hermione hasn't sat down with her parents and explained Harry's situation. It's very nice of them to open their home to him but as a parent I would be concerned about what my daughter had gotten our family into by bringing an abused child/teen home with her without even writing for permission to do so in the first place.
Criticisms aside, I hope your next chapter comes out soon because I find myself thinking about this story at odd times of the day and wondering what will befall Harry next in between chapters.