The couple's relationship came under scrutiny after claims that Broderick, 51, had an affair with a 25-year-old youth worker in 2008, reported Daily Express.
"I love Matthew Broderick. Call me crazy but I love him. We're very devoted to our family and our lives.
"So when our marriage came up in conversation it wouldn't occur to us that we were obligated to respond to allegations or gossip. You have to be a bit circumspect but you also have to take up a position and you have to stick to it," she said.