The model, who was being filmed backstage at a fashion show, spoke about 'moving forward graciously' and 'learning' from bad experiences.
[Left: Ross poses with Sanders / Right: Stewart papped talking to Sanders]
Although no names were mentioned, the 34-year-old said: "I believe that we're all on journeys and we are all given lessons at certain times in our lives.
"Sometimes, when things seem really bad, you have to be able to see the good and learn from it, and just move forward as graciously as possible."
She continued: "This year was the end of some things and the beginning of something else. Beginnings and endings are always exciting.
"I have a really good balance. I'm very happy with my life, and I'm lucky. I have good people."
Ross and Rupert, 41, have recently been seen at counselling sessions since his affair with the Twilight actress broke.
Watch the interview below: