Bulma more than likely attributed a bit of Vegeta's successes to the fact that he had someone to take care of him, now. To make sure he wasn't pushing too hard when he shouldn't be, or at least to give him shit when he was being too much. of course, he gave her the same back, but...

Well, that's just marriage, isn't it?

"Yeah, exactly." Bulma agrees with Vegeta's assessment easily enough. "Like a wireless relay or a wired one? The problem is I don't really know how far apart each stop is, either, to figure out what range a relay would need to cover either way..." And since they're doing void travel...

Hm.

"I wonder if anyone's figured out how to measure at all..."