The real quesiton for me is why is the advice “don’t sleep with your boss” and not “don’t sleep with your subordinates”? Isn’t that the way this power differential is going anyway?
Of course it is "don't sleep with your subordinates". Even more so. But anyone who needs that advice is 1) not going to be listening to me and 2) not listening to anyone, probably and mostly likely 3) thinks that they don't need it or it doesn't apply to them or that in this case it's true love.
Someone tweeted (blogged?) some wisdom that I can't find just now, hence an uncited paraphrase. If it was you, let me know, I'd love to give credit. Essentially ( I know this isn't quite right, and was even stronger) they said how can you trust someone to right by any of their trainees, if they can't do right by all of their trainees.