The couple have been drawn into controversy this week after it emerged that Sanders had "a fling" with Twilight star Kristen Stewart, with whom he worked on Snow White and the Huntsman.
The media have now picked up on quotes given by Ross to the Daily Mail earlier this month, as she admitted to feeling lonely after moving with Sanders to Los Angeles.
"I think that having been a model and so self-sufficient for those years, I was very ready to get married and have babies," she said. "I romanticised domesticity for a while, and loved having a shopping list of groceries stuck to the fridge for the first time.
"[But] moving here and starting a life all over again was a lot harder than I had anticipated. I just didn't think it would be as isolating and daunting as it turned out to be. I can honestly say that it took me five years to feel happy here."
Ross added that Sanders's work often took him away, saying: "I would never say out loud that I am raising my children alone, but a lot of the time it has felt like that."
However, Ross appeared to suggest that she was feeling more positive about the situation, saying: "We rode through the really hard times and we stuck it out."
Following the revelations about his infidelity, Sanders issued a statement saying that he is "utterly distraught" about the "pain" he has caused his family, adding: "My beautiful wife and heavenly children are all I have in this world. I love them with all my heart. I am praying that we can get through this together."
Stewart also publicly apologised to her partner and fellow Twilight star Robert Pattinson, in a statement in which she expressed regret for the "hurt and embarrassment" caused by a "momentary indiscretion".
Ross, who previously said that Stewart was her "number one choice" to play Snow White, reportedly tweeted about the affair before it was confirmed, though her Twitter account was later deleted.
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