Actually, there was a few sightings of them, even some paparazzi pictures with their children. But I wouldn’t compare. The interest for Gillian during her relationship with Mark was lower than now, and Twitter was barely a thing. They separated ten years ago, IG was a different time and no one doubted of their relationship anyway. She acknowledged him many times publicly, posed with him on red carpets, held his hand and they have kids together!
I don’t know if I’m being unrealistic. Maybe I am. But I think everyone could admit that there’s something weird and quite out of character for Gillian in this relationship. That’s what makes me question it now.