This was brilliant! You've painted a wonderfully hard-ass, snarky, yet loving Eileen, and did I mention snarky?
The interactions between her and Severus were so perfect, her treatment of Harry made Snape's seem almost hereditary! Her death gave an element of reality that made the romance, the funny moments (particularly Luna's vibrator) so much more precious. And Ron, why haven't they just dumped him--what a waste of magic!
The eulogy-sex was so endearing and hot, I was sort of stymied at my reaction--I was torn between going yum and yuk-yuk!