This!! Completely agree with you! I honestly think it was bad enough when he was doing this when she was hidden, but know... I really don't know how can she accept it. If I was her and that was happening to me, I wouldn't be able to look at my loved ones in the face. Imagine the shame! And for sure my mother would be thinking that he has something over my head to stay in a relationship like that.
The thing is that he hasn't acknowledged her in public yet. Every photo of them together are either quite old or taken by the paparazzi. The only thing he does is like her insta pics, and we know he does that with loads of other girls too.
He has never hid what he does, but she still does wait for him. Probably thinking he will change, but he won't. The ones that like to play around do it anyway, no matter how many years they have been together, if they are married or even if they have kids.