"Ah--" When she pulls her hand away, he starts to follow it with his own. Only after a second does he stop himself, his cheeks now flushed.

Archer looks down at his feet. But his gaze keeps going to hers instead. How strange. "Those vows would be really trivial to us, Rin. Who promises 'in sickness and in health' when they've already followed someone to another world? Besides--"

He looks up again, the blush rising more fiercely on his face. "There's no ring in the world that would be fine enough for you."