To Jane's disapproval, Diana and Tom are now living in sin, or rather together, but already they start arguing, since they can't decide whose furniture they should be using. A new resident, Mrs. Kent from Gwent, arrives. She is withdrawn and nervous so Tom and Diana put on an act of being very happy together in order to bring her out of her shell. As it happens they do get a result - but only when she sees what they are really like. (thetvdb.com)