Passage from Jane Austen's Northhanger Abbey

In this passage from Northhanger Abbey, a dreadful bore on the prowl monopolizes the heroine's attentions while her dance partner smolders with frustration:

This was the last sentence by which he could weary Catherine's attention, for he was just then borne off by the resistless pressure of a long string of passing ladies. Her partner now drew near, and said, That gentleman would have put me out of patience, had he stayed with you half a minute longer. He has no business to withdraw the attention of my partner from me. We have entered into a contract of mutual agreeableness for the space of an evening, and all our agreeableness belongs solely to each other for that time. Nobody can fasten themselves on the notice of one, without injuring the rights of the other. I consider a country-dance as an emblem of marriage. Fidelity and compliance are the principal duties of both; and those men who do not choose to dance or marry themselves, have no business with the partners or wives of their neighbors.

"But they are such very different things!"

"--That you think they cannot be compared together."

"To be sure not. People that marry can never part, but must go and keep house together. People that dance only stand opposite each other in a long room for half an hour."

"And such is your definition of matrimony and dancing. Taken in that light certainly, their resemblance is not striking; but I think I could place them in such a view. You will allow, that in both, man has the advantage of choice, woman only the power of refusal; that in both, it is an engagement between man and woman, formed for the advantage of each; and that when once entered into, they belong exclusively to each other till the moment of its dissolution; that it is their duty, each to endeavour to give the other no cause for wishing that he or she had bestowed themselves elsewhere, and their best interest to keep their own imaginations from wandering towards the perfections of their neighbours, or fancying that they should have been better off with anyone else. You will allow all this?"

"Yes, to be sure, as you state it, all this sounds very well; but still they are so very different. I cannot look upon them at all in the same light, nor think the same duties belong to them."

"In one respect, there certainly is a difference. In marriage, the man is supposed to provide for the support of the woman, the woman to make the home agreeable to the man; he is to purvey, and she is to smile. But in dancing, their duties are exactly changed; the agreeableness, the compliance are expected from him, while she furnishes the fan and the lavender water. That, I suppose, was the difference of duties which struck you, as rendering the conditions incapable of comparison."

"No, indeed, I never thought of that."

"Then I am quite at a loss. One thing, however, I must observe. This disposition on your side is rather alarming. You totally disallow any similarity in the obligations; and may I not thence infer that your notions of the duties of the dancing state are not so strict as your partner might wish? Have I not reason to fear that if the gentleman who spoke to you just now were to return, or if any other gentleman were to address you, there would be nothing to restrain you from conversing with him as long as you chose?"