On the willows there, we hung up our lyres

Even though she doesn't share any measure of Galahad's affection for the boy, Susan is aware that Galahad and Magnus are profoundly close. "How dreadful," she says. Her assessing mind is already turning this over and over, but instead of charging directly into incisive questions on the subject, she glances at Galahad, thinks of how she might approach a similar conversation with Lancelot, and instead asks, "Would you like to unpack what was wrong about him?"