In which the young lady Mary Thorne confronts a delicate and unwelcome inquiry from Lady Arabella regarding her engagement to Frank Gresham, leading her to affirm her steadfast affection despite the social and familial obstacles that surround them. The episode delicately unfolds the profound inner conflict that arises when heartfelt promise and rigid societal expectations come into uneasy contention, setting the stage for decisions pondered with a sober and resolute grace.