[Z]

I think it was wrong of Michael to deliberate over this for a few days, as awkward as it is, because it means he's keeping their secret by not telling Daniel straight away, so the sooner he tells Daniel the better. Michael should tell Daniel what he knows but not give him Roger's name, just that he's only today put two and two together or make up some lie like that to explain why he didn't tell him immediately, and then tell Roger what has happened. As rubbish as it is for Roger, he'll get out of the situation with the least heartbreak. Phyllis is a monster and should be exiled from life.