The Fall and Rise of Reginald Perrin (1976)

S2E2 Elizabeth's New Admirer

After Reggie finds himself employed at a pig farm, Elizabeth takes the initiative to find work of her own. She soon attracts the attention of a new admirer, stepping up as the primary provider for them both. However, she chooses to keep the specifics of her job a secret from Reggie, which leads him to worry that she might be involved with someone else. As tension builds, doubts arise, threatening their relationship.