"You are Huck Finn. Tell Jim what happened while you were with the Grangerfords. Explain to him how the deaths, due to the fight
ing, affected you. Your account of the feud should be at least ten sentences and include details from the "The Grangerfords and the Shepherdsons." Try to capture Huck's emotion as he tells his story to Jim." - I just copied and paste the question from the assignment.
He’s feeling upset that he was possibly left out of something, got pranked/cheated on, etc. Whatever happened was so bad that he thought they might be joking