This is because that love is utterly opposed to conjugial love, so opposed that it not only tears it apart, but, so to speak, grinds it up to dust and so annihilates it. For conjugial love is directed towards one of the other sex, but this lust does not dally with one, but after an hour or a day is as much prey to coldness as it was previously to heat for her. Since coldness is loathing, it is piled up by living together and being forced to stay together, until it becomes nauseous; and thus conjugial love is so used up that not a shred of it remains. These considerations enable us to see that this lust is fatal to conjugial love; and since conjugial love makes up the inmost level of a person's life, it is fatal to that kind of life. As the result of successive interruptions and obstructions of the inner levels of the mind, it ends up by becoming confined to the skin, so that it is nothing but a snare. However the ability to understand, rationality, still remains.