Memory-zapping fic is one of my favorites! And I adored that this time, it wasn't Snape saying, "I'll make you forget it." I loved that Harry decided to wipe his own memories to spare Snape. And that Snape decided that wasn't a good idea after all.
Funny in all the right spots (I giggle through their attempts to speak politely to each other), and sweet and just angsty around the edges. Lovely.