He mentioned that he has audiobooks he was saving for the flight. I get the uneasy, jittery boredom aspect. Especially when you had a reasonable expectation of how your time was meant to be spent and that was disrupted. It’s just lingering frustration and anticipation for what you originally set out to do. For anxious or neurodivergent people that can cause a degree of distress. Especially for something that’s already as unpleasant/stressful as flying. Not that it’s life threatening or can’t be managed. But it’s easy enough to see how his language reflects that mindset, giving it an air of urgency. I’m not saying OP has anxiety or is neurodivergent but it can happen in people without these issues too to varying degrees. They’re just painfully bored. It’s not an emergency, but it can be difficult