At the beginning of the opening scene, Austin is very hesitant to properly respond to Lee so decides to talk in short one word sentences. "Yeah". Highlighting that the brothers might've left off in a bad place and Austin is perhaps scared of Lee and his physical presence.
"I've got too much to deal with here without worrying about-"
A has hands on head, looks concerned/stressed. Voice breaks showing pressure he is under. O'Hare walks away from Ferns, seeming agitated and restless, he's uncertain, and has no power in the scene. O'Hare is scared Lee will get into trouble - impact on himself or concerned for his brother?