There were other explanations: Yukimura could have been long considering a pool of candidates and only just finalized his choice. He could have wanted to test how Bunta behaved without the bias of knowing his intentions. But what's important is protecting the ruse. It would be too suspicious if the king decided on his sister's marital fate on such a seeming impulse. He has to leave enough room for doubt that the truth doesn't become the narrative.
"As for the princess, try and ask her that," he dares. Less control over the answers, maybe, but this is how it should be.
1/2
There were other explanations: Yukimura could have been long considering a pool of candidates and only just finalized his choice. He could have wanted to test how Bunta behaved without the bias of knowing his intentions. But what's important is protecting the ruse. It would be too suspicious if the king decided on his sister's marital fate on such a seeming impulse. He has to leave enough room for doubt that the truth doesn't become the narrative.
"As for the princess, try and ask her that," he dares. Less control over the answers, maybe, but this is how it should be.