The narrator is experiencing overwhelming emotions after interacting with Bianca, which included dancing and facing rejection. This social overload makes him feel anxious and strained, as he grapples with personal discussions and the prospect of continued conversation with Rosie. At this point, he's longing for a break from the intense social situation.

As he contemplates leaving, he tries to convey his desire to go home by mentioning the late hour and taxi fares. However, he realizes that Rosie might be suggesting more conversation, leaving him feeling confused and out of his depth. He wants to clarify her intentions while struggling to manage the social dynamics around him.