He fell silent for a moment, brooding on his plans for justice. And then, abruptly, he said, “What do the smallfolk say of Renly’s death?” “They grieve. Your brother was well loved.” “Fools love a fool,” grumbled Stannis, “but I grieve for him as well. For the boy he was, not the man he grew to be.”
Why does Stannis trust and likes Davos so much? Yes, Davos saves his life but Stannis is also stubborn and he won't listen to anyone he doesn't trust so how did their friendship grow so much?