Much as I don't like the part of my brain that does this, I have cynically wondered if the whole "they are now together" thing is a way to manage the perception of the situation; "this is a serious romance, a sad case of two people falling in love outside of their marriage, such tragedy, but hearts and emotion and serious feelings", etc as opposed to "this was a 'tawdry fling' between two people who act on impulse, are used to just doing whatever they want didn't really care about anyone else, family or public, and thought they wouldn't get caught".
Kind of like the most recent Johnson marriage; damage control rather than true love.
Again, really should be none of our business, the trouble is I can't help but think of it through the prism of how they conduct themselves in every other part of their lives - try to get away with as much as possible in their own interests while cynically treating the public as fools and mugs.
I really, really hate these people.