This means, in practice, that when for serious reasons, for example, for the children's upbringing, a man and a woman cannot satisfy the obligation to separate, they "take on themselves the duty to live in complete continence, that is, by abstinence from the acts proper to married couples."
Si el marido, tras haberse separado de su mujer, se une a otra mujer, es adúltero, porque hace cometer un adulterio a esta mujer; y la mujer que habita con él es adúltera, porque ha atraído a sí al marido de otra.