Possible Clues:

• Feel bad about putting rook with another bird
• Having "but one life to give for my country," to Hale
• Tantric song they wish undone?
• Apology stimulus
• River bird makes one feel sorry
• Feel repentance
• Bad feeling bird gets by river
• Right to get her on to say sorry
• Be disappointed about Garbo skipping ending
• Sense of dissatisfaction