The thing that reverberates through people after an act terrorism is lack of trust resulting in an inability to connect with each other. The alienation this provokes leaves people in a desperate position to make a connection. The two strangers meet and he goes to the girls apartment they’re reaching out for a connection.
“Lets be friends, lets just be friends.” He becomes slightly aggressive in his advancements and even though her initial instinct is not to bring him to her apartment in the first place, she does because of curiosity and longing. This is how I think people have been affected on a larger scale after 9/11 and a representation of a parallel between this story and that event; paranoia, distrust, alienation, desperation and longing for trust and a connection with humanity that has been lost.