The reason of this separation has not come to our knowledge; but there seems to be a truth conveyed in the account of another Roman's being divorced from his wife, which may be applicable here. This person being highly blamed by his friends, who demanded, Was she not chaste? was she not fair? was she not fruitful? holding out his shoe, asked them, Whether it was not new? and well made? Yet, added he, none of you can tell where it pinches me.
-Plutarch, AEMILIUS PAULUS translated by John Dryden