Judy: What does John’s last message mean?
Anne: Judy! Stop reading my messages!
Judy: Why?
Anne: I don’t see what’s so private about them. After all, you haven’t changed your password yet.
Judy: I’m going to.
Anne: Good, but until then – what does his message might mean?
Judy wants to know what John's last message to Anne might mean. Anne wants Judy to stop reading her messages.