Like as a lot of dopey people do, or don't do, in a situation like this, she should have got the hell up and moved to a different car at that point, with him going nuts like he did. Instead, she simply puts her ear buds in and attempts to ignore him. That was pretty stupid on her part.
People today watch all this television and then incorporate the snarky epithets from the sitcoms into their interactions with other people.
Two parent families taught politeness and civility.
Neither of the two younger people in this farce demonstrated any awareness of those concepts.