As Time Goes By 1x2

Jean and Lionel look no closer to renewing their relationship when Lionel checks out of his hotel without telling Jean. However, Lionel's publisher, Alistair, convinces him to go to a party tonight to meet some 'faces', people who can help in the sale of his book. He checks back in, and, after a walk in the park, Lionel asks Jean to go to the party with him.