Each wanted to obey t'other.
Sir Charles argued that Bella was better than he, and therefore more fit to conduct the pair.
Bella, who thought him divinely good, pounced on this reason furiously.
He defended it.

He admitted, with exemplary candor, that he was good now--"awfully good." But he assured her that he had been anything but good until he knew her; now she had been always good; therefore, he argued, as his goodness came originally from her, for her to obey him would be a little too much like the moon commanding the sun.
"That is too ingenious for me, Charles," said Bella.

"And, for shame! Nobody was ever so good as you are.

I look up to you and--Now I could stop your mouth in a minute.

I have only to remind you that I shall swear at the altar to obey you, and you will not swear to obey me.