I Know You: Tom is in love with Katie but can't resist sharing a bed with Frankie. With Tom facing the awful truth that he's in love with two women, Katie starts to suspect he's having an affair. Charlie strikes out again with Julia and seeks solace in a pregnant client. Di leaves for New York with Clive, and at the airport, Frankie meets Clive's son, Lewis. They are like two lost souls who find each other.