She would neither leave her husband nor betray him, nor yet would she for one moment justify his sin; and hence came two years of convulsive struggle, in which sometimes, for a while, the good angel seemed to gain ground, and then the evil one returned with sevenfold vehemence.
Lord Byron argued his case with himself and with her with all the sophistries of his powerful mind.

He repudiated Christianity as authority; asserted the right of every human being to follow out what he called 'the impulses of nature.' Subsequently he introduced into one of his dramas the reasoning by which he justified himself in incest.
In the drama of 'Cain,' Adah, the sister and the wife of Cain, thus addresses him:-- 'Cain, walk not with this spirit.
Bear with what we have borne, and love me: I Love thee.
Lucifer.

More than thy mother and thy sire?
Adah.

I do.

Is that a sin, too?
Lucifer.