I don't mind if Harry takes care of Draco (hell, if I did, I think I wouldn't have written several of my stories),but it depends on his motivation. As you mentioned, his being perfectly calm and happy about it is debatable. So is the idea that he would reach out to Draco without resenting it, or just because he was attracted to him.

I tend to like fluff stories better when they're very short. Of course, I also don't read very many.