I really couldn't give a shit who he's shagging on the side so long as he does the job properly. the fixation with other peoples sex lives remains a mystery to me. To me it's salacious voyeurism.
He was a brilliant London Mayor and liked by right and left alike.
He was also really quite remarkable as FS , 2 days into the job when Paris was unfolding.
He's not stupid, an idiot, a buffoon (variously mis spelt by fuckwits as baffon? ) or any other of the descriptors frequently lobbed at him. A narcissist he isn't, he's frequently described by people close to him as a 'people pleaser', not someone self grandiose at all.
At least do your research before wading in with the knife.
Although I'm sure a bunch of hysterical middle aged women gum slapping is the least of his worries. Because you are doing what he wants - keeping his profile high.