The logic is obvious. If a woman remarries and she finds the former husband better that the latter, or has some settlement of a quarrel, then the fixing of the second union is placed in jeopardy by the possibility of further divorce and remarriage to the first husband.
La loi permet le divorce et le remariage, mais elle n’autorise pas le remariage avec la même femme après qu’elle a été mariée avec un autre homme.