Chess

While Harry is fighting He-Who-Must-Not-Be-Named
They talk of the latest Quidditch game

I don’t remember exactly what I read that inspired this, but basically, the idea was that Ron and Hermione got more than what they expected from their friendship with Harry, and that while they were both commited to help him, their own friendship allowed them to lean on each other and get some sense of normalcy. But also, that it was Ron who helped pull Hermione out of her worrying too much by offering some sort of escape. Accio Love! seemed fitting.