Which excerpt from a night to remember best indicates the customs of the time period?

there was no more joking or lingering. in fact, there was hardly time to say good-by.
mr. terrell cavendish said nothing to mrs. cavendish. just a kiss . . a long look . . another kiss . . and he disappeared into the crowd.
"walter, you must come with me," begged mrs. walter d. douglas. "no," mr. douglas replied, turning away, "i must be a gentleman."
mrs. smith had an inspiration. she went up to him, explained she was all alone in the world, and asked if her husband could go along with her.