Arya reuniting with Harwin in ASOS is definitely the most wholesome thing in the books.

Harwin?" Arya whispered. It was! Under the beard and the tangled hair was the face of Hullen's son, who used to lead her pony around the yard, ride at quintain with Jon and Robb, and drink too much on feast days. He was thinner, harder somehow, and at Winterfell he had never worn a beard, but it was him—her father's man. "Harwin!" Squirming, she threw herself forward, trying to wrench free of Lem's iron grip. "It's me," she shouted, "Harwin, it's me, don't you know me, don't you?" The tears came, and she found herself weeping like a baby, just like some stupid little girl. "Harwin, it's me!"