Her shoulders relax and drop when he confirms he's in the water, and she looks up to confirm it visually as well. Bare chest or not, at least she can't definably see more than that. (Even if what she does see is...

It's very hot in the hot spring, so the swooning is probably from that. Steam.)

"No, of course not," she hurries to answer, her eyebrows pinched together in a frown. "You're just...very naked. I'm not familiar with hot springs enough, clearly. I'm trying to not...uhm..." How should she put this? She waves vaguely in his general direction. "Objectify you."