Yet another pairing in this fest that I never would have considered, but the chemistry between them here is palpable. As different as they might appear, you've shown them as being really quite similar people. They're both proud, stubborn, and loyal, each in their own ways. It's a tragedy that some of their best traits are what have kept them apart for so many years.
The conversations between them are fantastic; there's so much said in what isn't said. There's a certain economy of words in your writing here that suits Aberforth's personality perfectly.
Great last line. Although the ending is utterly ambiguous, I like to think that Minerva and Aberforth might manage to find some sort of future together once the war is over and there's nothing left to keep them apart.