He's grateful for her sleepy-headed self-interest, insofar as he can feel gratitude at the moment. There's other things it wouldn't do for her to notice--like all the dried blood still clinging to his leg. The hellhound didn't land a truly debilitating hit on him before Rin took it down, but it's still an injury that would send a normal human to the hospital for stitches.

"That's wrong." He does his best to keep his voice level. He's succeeding pretty well. "It's not as if it was much of a battle, but it's more like you won. I--"

--stood there, and thought that you were beautiful, and that you were someone I could fight side-by-side with.

His composure cracks, just slightly. He draws in a quick, agonized breath and ducks his head to stare bitterly down at the floor. She's really getting in the way of all his plans. This whole place is.