I didn't make it in more than a few questions that she asked, and I realize there is a few problems here...but I'm over analytical at times too!!!
She starts by asking "What are you doing" and he replies "Nothing." - he could have answered with something a bit more specific, like 'cruising the internet.' She could have asked a bit more direct of a question too 'What are you doing right now, want to hit me up for some nookie?'
And the whole tone of the conversation (from the tidbit I saw) starts from that very question, and neither of them continued the conversation well either.
(I'm extremely bored today!)