It's evidence he had a wandering willy.
But in reality JB was a single guy without parental responsibilities. And yet he is always called out over his sexual morality. In one of the dramas a Sun journo questions his infidelity towards Julie. And in another a psychologist who has never met him refers to him as promiscious. And yet others who were in committed relationships and had children were carrying on much the same and no one comments:
CC married and living with SC by his own admission disappeared for 2 hours at SC's 21st party with a woman from his office and admits he had 'cardinal intent'. He then left SC and the twins for another woman when the twins were only 5 months old.
MM married and living with his wife while at the same time fathering a child with CB and continuing the relationship. But not content with two women he was also in a relationship with MS who he spent the night of the murders with.
I couldn't give a damn who was bonking who but its somewhat hypocritical. And it takes two to tango. And Afaik no woman has ever come forward to say JB behaved inappropriately.