That was the easiest conversation in the fall out.  Of course, hours later Draco was reamed out by a sitting United States President in front of half a dozen people he didn’t know, as well as another half a dozen people he did know.  His mother weathered the whole thing with her usual aire of disinterested ambivalence.  Draco knew that it was only a mask and inside she was seething.  She told him as much in her letter later.  But she had no issues with Hermione, in fact she was excited.  Apparently, Hermione exhibited "all the traits a witch should be in this modern age."