Tonks is very hard to write, but I found HBP very compliant with my "version" of her: Tonks full of random happyness that's excessive, Tonks full of fear because she was putting on her happy face so often that she forgot how to face bad stuff.

However, some people don't have her that way, and that's fine. I think you just have to keep key stuff in mind. I'd get into it, but I basically just woke up!

I had Ted as a muggle at first too.