Liberty as it is conceived by current opinion has nothing inherent about it it is a sort of gift or trust bestowed on the individual by the state pending good behavior.
You musn't force sex to do the work of love or love to do the work of sex.
The betrayal of trust carries a heavy taboo.
If you made a list of reasons why any couple got married and another list of the reasons for their divorce you'd have a hell of a lot of overlapping.
