[Joke or not, he suddenly looks a little too serious at that question and he watches her turn. He doesn't start moving just yet, staring at Yang with wide eyes before he steps forward to start walking toward the village.]

...Ruby doesn't know about Tadashi. [It's the first thing he says. He'd purposefully left that part out of his origin story. Truthfully, before this happened he'd been planning on keeping Tadashi's death under wraps unless Tadashi mentioned it first.] I told her some other stuff about me, but I never told her that Tadashi's dead back home. Can...we leave that part out if we do find her?

[Later. He'll tell her later (maybe, probably, unless someone beats him to it and he has no control over that) but right now it just seems sort of weird. A few days ago he'd just been telling Ruby about how he rescued the Bridge. Now he kind of dissolved into a mess. The less people see it, the better.]