and came across the following. Now putting aside things like this is a one-sided story and who knows what else was going on, I was wondering... What if you had a relationship with someone, marriage or whatever, and over the years although things were good, one person had decided that sexual relationships no longer was of any interest. Assume it's not a question of biological impossibility but just one of decision. In a situation like that, if the other partner wants to have sexual relationships outside of the union, is that something that'd be called cheating or wrong? So, if Person A isn't interested in it, should Person A care if Person B looks elsewhere for it?