Dont agree with posters saying it's our business.
It's possible to compartmentalise your life .
Also, the implication is that it was his wife- Marina- who delayed the divorce around the settlement and they have only just agreed.
Your personal morality does not have to affect your ability to run the country or what you choose to do. And BJ is not a dictator- there is a cabinet and the idea of democracy is the other ministers have some input!
If you look at history going back 100 years or more there have been some very dodgy PMs in terms of their personal lives, but they were good PMs.
There are some very successful and powerful men (and women) out there who have made billions and contributed to society yet they have car crashes of private lives.
I do think however, that Boris ought to have kept his girlfriend out of the limelight till he was divorced for her sake as much as anything.