... the advantage or well-being of the child that it is so placed. It is the language of the law, (and it is also the language of the opponents of any alteration in the law) to speak of the father’s ... it to appear that quarrels and separations had already taken place. Between these two interests of plaintiff and defendant, therefore, the woman’s character is left to take its chance; the ... the wife previous to the separation; to the fact of this accusation having been got up, as a last resource and engine of attack, six weeks after the quarrel of which this was made to appear...