2 Samuel 13:15 - Matthew Poole's English Annotations on the Holy Bible

Then Amnon hated her exceedingly; partly because, his lust being now satisfied, his mind and conscience had a true and clear prospect and deep sense of the natural turpitude and baseness of the action, and of that shame, and contempt, and loss, and mischief which was likely to follow it, and consequently an utter aversion from her who had been the instrument and occasion of his sin; and principally by the just judgment of God, both upon Amnon and David, that so the sin might be made public, and way made for the succeeding tragedies; for otherwise it would probably produce love and kindness to her, as it did in another, Genesis 34:2,3; especially, in him, whom both nature, and interest, and even lust itself, obliged to allay her grief and shame by all possible demonstrations of kindness.