In episode 5, Otonashi and Angel had a conversation about Yuri's dream and how many Hinatas there were, which seemed totally random and out of nowhere. When I first watched that episode, I didn't get the humor and meaning that I expected were there in the conversation. Is there a joke or meaning to those remarks, or are they just some disposable lines?
The curious conversation between Otonashi and Angel
Otonashi: Sorry! Yuri's a little emotionally unstable. Because last night, Hinata showed up in her dream and—
Hinata: Don't think that the me from today and tomorrow will be the same. Watch out.
Otonashi: That's what he said, and Yuri just proved it.
Angel: Are there two Hinata-kun's?
Otonashi: Y-Yeah... that's right.
Angel: Is there a chance that there's more than three of him?
Otonashi: Huh? Oh, uh... it's possible.
Angel: I'm sorry to hear that.