I'm working on a story where my protagonist's relationship with her husband begins to break down, culminating in divorce. There is a semi-complicated web of factors that lead to this (elderly parent, long work hours etc.) but ultimately both partners just feel neglected. Do you have any ideas as to how I could convey the neglect that creeps into their relationship through little instances of plot? Or actions that contribute to the relationship breakdown? I'm not really looking for drama (cheating etc.), more subtle, everyday actions gone wrong. Thanks!