Orley Farm by Anthony Trollope

Unfortunately for Mr. Furnival, the intruder was Mrs. Furnival -- whether he pleased or whether he did not please. There she was in his law chamber, present in the flesh, a sight pleasing neither to her husband nor to her husband's client. She had knocked at the outside door, which, in the absence of the fag, had been opened by Mr. Crabwitz, and had immediately walked across the passage towards her husband's room, expressing her knowledge that Mr. Furnival was within. Mr. Crabwitz had all the will in the world to stop her progress, but he found that he lacked the power to stay it for a moment.

The advantages of matrimony are many and great -- so many and so great, that all men, doubtless, ought to marry. But even matrimony may have its drawbacks; among which unconcealed and undeserved jealousy on the part of the wife is perhaps as disagreeable as any. What is a man to do when he is accused before the world -- before any small fraction of the world, of making love to some lady of his acquaintance? What is he to say? What way is he to look? "My love, I didn't. I never did, and wouldn't think of it for worlds. I say it with my hand on my heart. There is Mrs. Jones herself, and I appeal to her. " He is reduced to that! But should any innocent man be so reduced by the wife of his bosom?