WP, that is an interesting perspective. But I don't think it is quite the same. The person in jail is not with OW/OM and many times the person outside has someone for the time the spouse/partner is in jail.
Also, they have a time frame, 25, for life, etc. Of course the sentence time can be reduced, but they have the sentence time frame in mind. We do not have a MLC for 7 years, MLC for 5 years, MLC for ever.
Sometimes good things fall apart so better things can fall together. (Marilyn Monroe)