The singer also blasted his controlling nature, saying he criticised her wardrobe and insisted on ordering for her when they went out for a meal.
She told the News of the World: "I remember him saying 'Have you got any other jumpers?' I think he was surprised that I lived so simply, hate shopping and don't have a fancy wardrobe."
Matthews, who ditched the ex-EastEnders star just before Valentine's Day, explained that he had struggled to cope when she took her two children to visit him in London.
"It was a disaster. We all caught a cold and Glenys Pearl was screaming with a fever. We were switching beds all night and I remember Marc saying, 'This could be the rest of my life.' And he looked scared!"
Talking about his habit of ordering for her in restaurants, she added: "I remember us going for an Indian meal, one of the only two proper dates we ever had, and he chose what I should eat.
"He picked the wine and the food, which was a shock. I didn't tell him I prefer to order my own stuff because our relationship was so new."
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