South Carolina is not a progressive state when it comes to divorce.
Some states no longer recognize fault-based grounds at all.
Adultery in the military is punishable when it is construed as morally wrong.
Therefore, if the adultery occurred after separation and not before, it may be excusable during a military inquiry.
It would depend on the opinion of the officers conducting the inquiry.
If a married but separated man takes a woman out for dinner, but drops her off at the end of the evening and goes his own way, it’s generally not adultery. If he dates that woman repeatedly and they begin spending time together in each other’s homes, this can open the door for his spouse to claim the affair is adulterous because sexual contact might be taking place.
In some states, adultery is a crime, although it is rarely prosecuted.
South Carolina’s legislation still recognizes fault, however, and judges will also consider it when deciding issues of alimony and property division.