"The two whose company he craved most . . . Ron and Hermione, who had stuck with him for so long, and who deserved the truth" (ch. 36).
The war was finished, and they had won.
He had won.
But they had lost so much, experienced so much pain along the way, that it was hard to feel joy right now, even if he should.
The only thing that made it feel all right were the two people standing on either side of him, arms around him, even as he was holding on to them. Keeping one another upright.
The people who had been with him from the start, and stuck with him until the end.
The people with whom he had come full circle.
Ron and Hermione.
And that's all, folks! They started it, and they'll end it - full circle. The triangle is complete - and will be forever.