Obama appears to have been a model husband and father. I think it's preferable, other factors being equal, that the first citizen set a good example in his personal life.
It's possible Trump's had a change of heart since Stormy, I suppose.
I don't think Bill has changed though. But he wasn't a bad President. Still, doesn't he look happy? Can't imagine what being married to a Hillary must be like, and I hope I never do.