I don't think Manolo was ever Bob's nurse. Didn't Bob say he was his father's nurse (or another relative). Or maybe that was just a lie and Manolo is just Bob's lover. Or maybe Manolo was the nurse of whomever Bob took care of at his last job (didn't they call him a manservant?). True. But I think at least a little of that can be attributed to at least Don being a little bit disgusted at Sal when he discovered him in that hotel room with the bellhop. I don't think Don or Roger felt the least bit guilty getting rid of a homosexual from their office.