The Path of Duty by Henry James

She protested too much, perhaps, but the event seemed to show that she was in earnest. I have described these two first visits of mine in some detail, but they were not the only ones I paid her. I saw her several times again, before she left town, and we became intimate, as London intimacies are measured. She ceased to protest (to my relief, for it made me nervous), she was very gentle, and gracious, and reasonable, and there was something in the way she looked and spoke that told me that for the present she found renunciation its own reward. So far, my scepticism was put to shame; her spiritual ecstasy maintained itself. If I could have foreseen then that it would maintain itself till the present hour I should have felt that Lady Vandeleur's moral nature is finer indeed than mine. I heard from her that Mr. Tester remained at his father's, and that Lady Emily and her daughter were also there. The day for the wedding had been fixed, and the preparations were going rapidly forward.

Meanwhile -- she didn't tell me, but I gathered it from things she dropped -- she was in almost daily correspondence with the young man. I thought this a strange concomitant of his bridal arrangements; but apparently, henceforth, they were bent on convincing each other that the torch of virtue lighted their steps, and they couldn't convince each other too much. She intimated to me that she had now effectually persuaded him (always by letter), that he would fail terribly if he should try to found his happiness on an injury done to another, and that of course she could never be happy (in a union with him), with the sight of his wretchedness before her. That a good deal of correspondence should be required to elucidate this is perhaps after all not remarkable.