Some kind of strange ranger

In a civvie bar, a group of hefty honeys apparently on girls' night out; One is telling everyone that her husband had died recently. She was checking his social media and discovered that a 'woman she did not know' was sending him dick pics. Her friends got her to quiet down so the rest is a mystery as to whether he was doing threesomes or chicks w sticks or what. Was it unfair of him to not take measures to keep her from accessing that, or if she was inattentive to his needs, is it good that she found it?