Jenny takes charge of planning Adam and Rachel's wedding as Adam buys Rachel an unattractive engagement ring. David unceremoniously breaks up with Jessica in a restaurant, where they are seen by Robert. After Karen is arrested for tackling a car thief, David takes her out to dinner, where she begins to suspect something is wrong. An argument over the engagement ring leads Adam and Rachel to scale back their wedding plans; they opt for a simple register office ceremony instead of at a large country house. Pete, enjoying his dates with Emma, asks Jenny for a divorce.