[ Sorry Rin, but even though that sounds like a command, Saber manages to keep herself from summoning Excalibur. If she really wishes her to draw her sword after hearing that confession from Shirou then she'd need a Command Spell. Especially since her previous one kinda goes against that. ]

That should not be possible. Saber says this mostly to herself. You were able to project swords fast enough to fight on par with Archer and Gilgamesh. You manifested a Reality Marble.

[ Saber wishes she understood everything that had happened to him now more than ever. ]