Walter pauses in the middle of rising, eyes wide. He's been caught off-guard by the statement, and while it isn't shocking, he hadn't expected her to circle around back to the subject, much less address it in such a way.

Not wanting to get too far into it, he responds as he straightens, "And drop the world? Perish the thought."

Taking on that weight is what gives him a sense of purpose. He wouldn't know what to do with himself otherwise.