A husband may happen to piss off his wife with his quirks so much that she surreptitiously starts sleeping with a neighbour. Or, on the contrary she may start hating this neighbour and slangwhanging with him. People have different reactions to the feeling of unhappiness in relations. To be more precise their aggression takes different forms and is directed at different objects, but never or rarely at the breadwinner, the one their biological survival depends on.