The attraction would have come all from Draco. Hermoine's personality wouldn't allow her to be attracted to someone who believes pure bloods were superior. Remember when Draco called her a mudblood, Hermoine despised Draco.
I don't think so. Harry Potter isn't some kind of dramatic soap opera. It's real stuff. J.K. Rowling never said it or even hinted at it, and Severus Snape loved Lily Potter (nee` Evans) and he always tried to restrain from calling her Mudblood. Maybe the circumstances are different, but he knows how offensive it is and i just don't think so AT ALL.
Plus Draco Malfoy hates "Mudbloods"