apparently pat and roy are reconciled before his death (It said it in the mirror on Saturday!), the rest, well who knows, the EE script writers don't care for things like reality or continuity very often so it wouldn't surprise me if Pat had to start living on the streets at the behest of mad Barry. Roy and Barry are fools anyway, despite pat's intentions, and regardless of whether her telling them about the affair would have ben more apropriate, how would it have changed the fact that Nat didn't want barry anymore? They're just looking for a scapegoat because the truth is to painful.