Ups and downs of a marriage: A couple chart a month of murderous rows to passionate sex

Ups and downs of a marriage: A couple chart a month of murderous rows to passionate sex

Ups and downs of a marriage: A couple chart a month of icy silences, murderous rows and passionate sex

9:20 AM on 17th August 2011

Marriage woes: Shona Sibary and her husband Keith keep track of their marital ups and downs over a month

Marriage woes: Shona Sibary and her husband Keith keep track of their marital ups and downs over a month

Irritated: Shona says some mornings she wakes up, looks at Keith and immediately feel irritated (Picture posed by models)

Irritated: Shona says some mornings she wakes up, looks at Keith and immediately feel irritated (Picture posed by models)

Lack of sex: Keith says he starts to notice its absence if they go for a month without making love

Lack of sex: Keith says he starts to notice its absence if they go for a month without making love

Shona Sibary and husband Keith

Sometimes it feels as though Keith and Shone are two strangers existing side by side in the same house