Bulma still doesn't really know how it works, but she.. well. It works. She had contented herself with Yamcha before, and though they'd fought long and hard for this relationship at the end of the day... she was happy that they had. In their own ways. Could she have done without the whole Majin thing? Yes.

But without it, they probably wouldn't be where they are now, in their own strange way.

"Mn. I think he enjoys being the one with the answers." She smiles, though, thinking about how she would also like that, and so she can't even blame him for it. Though, actually, while they're here -

"What do you think about him and that girl?"